Added falloc.h in build_detect_platform
Added falloc.h in build_detect_platform

On Centos 6, you need to explicitely include linux/falloc.h which is
whele the  FALLOC_FL_* flags are defined. Otherwise, the fallocate()
support test defined in build_detect_platform will fail.

Signed-off-by: Pooya Shareghi <c6eddaba2afc878515dbd082b1d0e6909e9355a9@gmail.com>

wskplho/rocksdb,hobinyoon/rocksdb,facebook/rocksdb,makelivedotnet/rocksdb,ylong/rocksdb,zhangpng/rocksdb,wlqGit/rocksdb,JoeWoo/rocksdb,Andymic/rocksdb,JohnPJenkins/rocksdb,geraldoandradee/rocksdb,ylong/rocksdb,NickCis/rocksdb,jalexanderqed/rocksdb,OverlordQ/rocksdb,temicai/rocksdb,temicai/rocksdb,caijieming-baidu/rocksdb,jalexanderqed/rocksdb,Vaisman/rocksdb,RyanTech/rocksdb,wat-ze-hex/rocksdb,zhangpng/rocksdb,RyanTech/rocksdb,kaschaeffer/rocksdb,vashstorm/rocksdb,anagav/rocksdb,kaschaeffer/rocksdb,flabby/rocksdb,sorphi/rocksdb,norton/rocksdb,luckywhu/rocksdb,JackLian/rocksdb,sorphi/rocksdb,norton/rocksdb,makelivedotnet/rocksdb,wenduo/rocksdb,facebook/rocksdb,tsheasha/rocksdb,alihalabyah/rocksdb,caijieming-baidu/rocksdb,wskplho/rocksdb,makelivedotnet/rocksdb,RyanTech/rocksdb,wlqGit/rocksdb,OverlordQ/rocksdb,norton/rocksdb,lgscofield/rocksdb,temicai/rocksdb,wlqGit/rocksdb,JohnPJenkins/rocksdb,NickCis/rocksdb,dkorolev/rocksdb,Andymic/rocksdb,anagav/rocksdb,wenduo/rocksdb,bbiao/rocksdb,vmx/rocksdb,hobinyoon/rocksdb,wat-ze-hex/rocksdb,JoeWoo/rocksdb,OverlordQ/rocksdb,JoeWoo/rocksdb,JohnPJenkins/rocksdb,IMCG/RcoksDB,facebook/rocksdb,norton/rocksdb,fengshao0907/rocksdb,SunguckLee/RocksDB,wat-ze-hex/rocksdb,wat-ze-hex/rocksdb,alihalabyah/rocksdb,IMCG/RcoksDB,SunguckLee/RocksDB,wlqGit/rocksdb,geraldoandradee/rocksdb,luckywhu/rocksdb,temicai/rocksdb,ryneli/rocksdb,luckywhu/rocksdb,JoeWoo/rocksdb,siddhartharay007/rocksdb,caijieming-baidu/rocksdb,Vaisman/rocksdb,caijieming-baidu/rocksdb,JackLian/rocksdb,hobinyoon/rocksdb,wenduo/rocksdb,norton/rocksdb,siddhartharay007/rocksdb,skunkwerks/rocksdb,IMCG/RcoksDB,bbiao/rocksdb,SunguckLee/RocksDB,alihalabyah/rocksdb,Vaisman/rocksdb,fengshao0907/rocksdb,geraldoandradee/rocksdb,zhangpng/rocksdb,jalexanderqed/rocksdb,hobinyoon/rocksdb,fengshao0907/rocksdb,norton/rocksdb,NickCis/rocksdb,vmx/rocksdb,wskplho/rocksdb,ryneli/rocksdb,SunguckLee/RocksDB,skunkwerks/rocksdb,wlqGit/rocksdb,luckywhu/rocksdb,mbarbon/rocksdb,Applied-Duality/rocksdb,geraldoandradee/rocksdb,wenduo/rocksdb,jalexanderqed/rocksdb,tizzybec/rocksdb,zhangpng/rocksdb,caijieming-baidu/rocksdb,anagav/rocksdb,norton/rocksdb,Applied-Duality/rocksdb,vashstorm/rocksdb,JohnPJenkins/rocksdb,biddyweb/rocksdb,tsheasha/rocksdb,vashstorm/rocksdb,JackLian/rocksdb,facebook/rocksdb,biddyweb/rocksdb,zhangpng/rocksdb,vashstorm/rocksdb,siddhartharay007/rocksdb,alihalabyah/rocksdb,Applied-Duality/rocksdb,Andymic/rocksdb,OverlordQ/rocksdb,tizzybec/rocksdb,wskplho/rocksdb,dkorolev/rocksdb,skunkwerks/rocksdb,rDSN-Projects/rocksdb.replicated,skunkwerks/rocksdb,JoeWoo/rocksdb,fengshao0907/rocksdb,tizzybec/rocksdb,flabby/rocksdb,sorphi/rocksdb,Vaisman/rocksdb,tizzybec/rocksdb,zhangpng/rocksdb,ylong/rocksdb,bbiao/rocksdb,biddyweb/rocksdb,rDSN-Projects/rocksdb.replicated,caijieming-baidu/rocksdb,IMCG/RcoksDB,Andymic/rocksdb,jalexanderqed/rocksdb,ryneli/rocksdb,siddhartharay007/rocksdb,rDSN-Projects/rocksdb.replicated,flabby/rocksdb,sorphi/rocksdb,tsheasha/rocksdb,lgscofield/rocksdb,biddyweb/rocksdb,geraldoandradee/rocksdb,Andymic/rocksdb,tsheasha/rocksdb,mbarbon/rocksdb,vashstorm/rocksdb,makelivedotnet/rocksdb,JoeWoo/rocksdb,flabby/rocksdb,wenduo/rocksdb,lgscofield/rocksdb,tizzybec/rocksdb,geraldoandradee/rocksdb,NickCis/rocksdb,dkorolev/rocksdb,wat-ze-hex/rocksdb,dkorolev/rocksdb,bbiao/rocksdb,mbarbon/rocksdb,facebook/rocksdb,NickCis/rocksdb,NickCis/rocksdb,kaschaeffer/rocksdb,norton/rocksdb,tsheasha/rocksdb,wskplho/rocksdb,tsheasha/rocksdb,luckywhu/rocksdb,tizzybec/rocksdb,facebook/rocksdb,flabby/rocksdb,ylong/rocksdb,luckywhu/rocksdb,anagav/rocksdb,JackLian/rocksdb,sorphi/rocksdb,makelivedotnet/rocksdb,temicai/rocksdb,wlqGit/rocksdb,kaschaeffer/rocksdb,luckywhu/rocksdb,Applied-Duality/rocksdb,temicai/rocksdb,Andymic/rocksdb,temicai/rocksdb,SunguckLee/RocksDB,hobinyoon/rocksdb,JackLian/rocksdb,RyanTech/rocksdb,lgscofield/rocksdb,biddyweb/rocksdb,Applied-Duality/rocksdb,vmx/rocksdb,jalexanderqed/rocksdb,rDSN-Projects/rocksdb.replicated,JohnPJenkins/rocksdb,Andymic/rocksdb,wenduo/rocksdb,anagav/rocksdb,caijieming-baidu/rocksdb,bbiao/rocksdb,dkorolev/rocksdb,hobinyoon/rocksdb,zhangpng/rocksdb,ryneli/rocksdb,Vaisman/rocksdb,vmx/rocksdb,sorphi/rocksdb,JoeWoo/rocksdb,facebook/rocksdb,RyanTech/rocksdb,wskplho/rocksdb,RyanTech/rocksdb,JohnPJenkins/rocksdb,ryneli/rocksdb,vashstorm/rocksdb,rDSN-Projects/rocksdb.replicated,IMCG/RcoksDB,NickCis/rocksdb,OverlordQ/rocksdb,wenduo/rocksdb,flabby/rocksdb,anagav/rocksdb,ylong/rocksdb,rDSN-Projects/rocksdb.replicated,kaschaeffer/rocksdb,wat-ze-hex/rocksdb,tizzybec/rocksdb,JackLian/rocksdb,siddhartharay007/rocksdb,Applied-Duality/rocksdb,biddyweb/rocksdb,kaschaeffer/rocksdb,bbiao/rocksdb,SunguckLee/RocksDB,wlqGit/rocksdb,kaschaeffer/rocksdb,IMCG/RcoksDB,makelivedotnet/rocksdb,SunguckLee/RocksDB,RyanTech/rocksdb,ylong/rocksdb,JohnPJenkins/rocksdb,biddyweb/rocksdb,JackLian/rocksdb,rDSN-Projects/rocksdb.replicated,ylong/rocksdb,lgscofield/rocksdb,alihalabyah/rocksdb,dkorolev/rocksdb,wat-ze-hex/rocksdb,SunguckLee/RocksDB,anagav/rocksdb,siddhartharay007/rocksdb,vmx/rocksdb,jalexanderqed/rocksdb,skunkwerks/rocksdb,hobinyoon/rocksdb,bbiao/rocksdb,mbarbon/rocksdb,alihalabyah/rocksdb,fengshao0907/rocksdb,Andymic/rocksdb,geraldoandradee/rocksdb,skunkwerks/rocksdb,OverlordQ/rocksdb,Applied-Duality/rocksdb,Vaisman/rocksdb,vmx/rocksdb,ryneli/rocksdb,mbarbon/rocksdb,alihalabyah/rocksdb,mbarbon/rocksdb,makelivedotnet/rocksdb,fengshao0907/rocksdb,mbarbon/rocksdb,bbiao/rocksdb,fengshao0907/rocksdb,dkorolev/rocksdb,Vaisman/rocksdb,wenduo/rocksdb,tsheasha/rocksdb,skunkwerks/rocksdb,lgscofield/rocksdb,sorphi/rocksdb,wskplho/rocksdb,flabby/rocksdb,ryneli/rocksdb,OverlordQ/rocksdb,wat-ze-hex/rocksdb,tsheasha/rocksdb,lgscofield/rocksdb,hobinyoon/rocksdb,siddhartharay007/rocksdb,vashstorm/rocksdb,facebook/rocksdb,vmx/rocksdb,vmx/rocksdb,IMCG/RcoksDB