mraa.c: Remove mraa_init() from mraa_pin_mode_test
mraa.c: Remove mraa_init() from mraa_pin_mode_test

If platform is not initalised at this stage then there is no need to attempt
again

Signed-off-by: Michael Ring <1d6e1cf70ec6f9ab28d3ea4b27a49a77654d370e@michael-ring.org>
Signed-off-by: Brendan Le Foll <3e0e8c4069934e8b47d99704927a85c66c0ceb33@intel.com>

sundw2014/mraa,andreivasiliu2211/mraa,matt-auld/mraa,nioinnovation/mraa,andreivasiliu2211/mraa,smileboywtu/mraa,Kiritoalex/mraa,jontrulson/mraa,alext-mkrs/mraa,sundw2014/mraa,Kiritoalex/mraa,spitfire88/mraa,timrtoo/Intel,sergev/mraa,g-vidal/mraa,sergev/mraa,nioinnovation/mraa,yongli3/mraa,tripzero/mraa,malikabhi05/mraa,Meirtz/mraa,jontrulson/mraa,andreivasiliu2211/mraa,allela-roy/mraa,KurtE/mraa,smileboywtu/mraa,alex1818/mraa,arfoll/mraa,ProfFan/mraa,neuberfran/mraa,ncrastanaren/mraa,yoyojacky/mraa,alext-mkrs/mraa,alext-mkrs/mraa,sundw2014/mraa,STANAPO/mraa,sergev/mraa,noahchense/mraa,anonymouse64/mraa,noahchense/mraa,malikabhi05/mraa,neuberfran/mraa,Pillar1989/mraa,intel-iot-devkit/mraa,intel-iot-devkit/mraa,noahchense/mraa,neuroidss/mraa,SyrianSpock/mraa,intel-iot-devkit/mraa,neuberfran/mraa,sundw2014/mraa,Pillar1989/mraa,alexandru-elisei/mraa,anonymouse64/mraa,Propanu/mraa,pctj101/mraa,w4ilun/mraa,arunlee77/mraa,KurtE/mraa,spitfire88/mraa,yongli3/mraa,neuberfran/mraa,mircea/mraa,allela-roy/mraa,arfoll/mraa,jontrulson/mraa,timrtoo/Intel,zBMNForks/mraa,SyrianSpock/mraa,arfoll/mraa,petreeftime/mraa,alexandru-elisei/mraa,damcclos/mraa,Propanu/mraa,alexandru-elisei/mraa,w4ilun/mraa,sergev/mraa,Hbrinj/mraa,stefan-andritoiu/mraa,noahchense/mraa,malikabhi05/mraa,intel-iot-devkit/mraa,yongli3/mraa,arunlee77/mraa,g-vidal/mraa,alext-mkrs/mraa,matt-auld/mraa,ncrastanaren/mraa,STANAPO/mraa,SyrianSpock/mraa,pctj101/mraa,seem-sky/mraa,alexandru-elisei/mraa,alext-mkrs/mraa,mircea/mraa,stefan-andritoiu/mraa,tripzero/mraa,pctj101/mraa,stefan-andritoiu/mraa,ncrastanaren/mraa,STANAPO/mraa,petreeftime/mraa,malikabhi05/mraa,Kiritoalex/mraa,sundw2014/mraa,neuroidss/mraa,Pillar1989/mraa,petreeftime/mraa,stefan-andritoiu/mraa,pctj101/mraa,seem-sky/mraa,damcclos/mraa,smileboywtu/mraa,jontrulson/mraa,alex1818/mraa,whbruce/mraa,Hbrinj/mraa,spitfire88/mraa,allela-roy/mraa,w4ilun/mraa,pctj101/mraa,stefan-andritoiu/mraa-gpio-chardev,alexandru-elisei/mraa,Propanu/mraa,zBMNForks/mraa,Meirtz/mraa,timrtoo/Intel,stefan-andritoiu/mraa-gpio-chardev,yoyojacky/mraa,mircea/mraa,timrtoo/Intel,yoyojacky/mraa,sergev/mraa,matt-auld/mraa,whbruce/mraa,Jon-ICS/mraa,stefan-andritoiu/mraa-gpio-chardev,timrtoo/Intel,ProfFan/mraa,arunlee77/mraa,Propanu/mraa,malikabhi05/mraa,zBMNForks/mraa,KurtE/mraa,stefan-andritoiu/mraa,noahchense/mraa,arfoll/mraa,yongli3/mraa,g-vidal/mraa,seem-sky/mraa,jontrulson/mraa,andreivasiliu2211/mraa,Meirtz/mraa,stefan-andritoiu/mraa-gpio-chardev,Jon-ICS/mraa,tripzero/mraa,KurtE/mraa,ProfFan/mraa,seem-sky/mraa,g-vidal/mraa,petreeftime/mraa,Hbrinj/mraa,whbruce/mraa,arunlee77/mraa,damcclos/mraa,arfoll/mraa,yongli3/mraa,nioinnovation/mraa,whbruce/mraa,ncrastanaren/mraa,stefan-andritoiu/mraa-gpio-chardev,intel-iot-devkit/mraa,anonymouse64/mraa,Propanu/mraa,w4ilun/mraa,neuberfran/mraa,g-vidal/mraa,ncrastanaren/mraa,seem-sky/mraa,spitfire88/mraa,alex1818/mraa,neuroidss/mraa,KurtE/mraa,ProfFan/mraa,Hbrinj/mraa,Jon-ICS/mraa