respect xz_compression_level when compressing native libraries
respect xz_compression_level when compressing native libraries

Summary: currently we compress native libraries with the default compression level no matter what level is passed in

Test Plan: local builds of automation_fbandroid_ics_xxhdpi_armv7_release, compare sizes and make sure it can be extracted.

Reviewed By: stashuk

fbshipit-source-id: 6c227e3

vschs007/buck,justinmuller/buck,Addepar/buck,rmaz/buck,dsyang/buck,illicitonion/buck,kageiit/buck,brettwooldridge/buck,janicduplessis/buck,rmaz/buck,rmaz/buck,k21/buck,robbertvanginkel/buck,Addepar/buck,Addepar/buck,k21/buck,OkBuilds/buck,daedric/buck,JoelMarcey/buck,facebook/buck,vschs007/buck,zhan-xiong/buck,darkforestzero/buck,sdwilsh/buck,zhan-xiong/buck,daedric/buck,SeleniumHQ/buck,OkBuilds/buck,k21/buck,daedric/buck,dsyang/buck,marcinkwiatkowski/buck,robbertvanginkel/buck,nguyentruongtho/buck,grumpyjames/buck,dsyang/buck,illicitonion/buck,janicduplessis/buck,ilya-klyuchnikov/buck,illicitonion/buck,sdwilsh/buck,zpao/buck,Addepar/buck,janicduplessis/buck,grumpyjames/buck,davido/buck,brettwooldridge/buck,shybovycha/buck,brettwooldridge/buck,raviagarwal7/buck,brettwooldridge/buck,vschs007/buck,raviagarwal7/buck,darkforestzero/buck,robbertvanginkel/buck,brettwooldridge/buck,clonetwin26/buck,facebook/buck,grumpyjames/buck,justinmuller/buck,zhan-xiong/buck,shybovycha/buck,sdwilsh/buck,darkforestzero/buck,raviagarwal7/buck,vschs007/buck,robbertvanginkel/buck,SeleniumHQ/buck,OkBuilds/buck,grumpyjames/buck,clonetwin26/buck,ilya-klyuchnikov/buck,ilya-klyuchnikov/buck,shs96c/buck,shybovycha/buck,sdwilsh/buck,vschs007/buck,marcinkwiatkowski/buck,k21/buck,facebook/buck,zpao/buck,clonetwin26/buck,LegNeato/buck,vschs007/buck,sdwilsh/buck,justinmuller/buck,rmaz/buck,JoelMarcey/buck,ilya-klyuchnikov/buck,dsyang/buck,zhan-xiong/buck,JoelMarcey/buck,illicitonion/buck,janicduplessis/buck,zhan-xiong/buck,daedric/buck,ilya-klyuchnikov/buck,SeleniumHQ/buck,illicitonion/buck,k21/buck,zpao/buck,davido/buck,robbertvanginkel/buck,SeleniumHQ/buck,SeleniumHQ/buck,davido/buck,darkforestzero/buck,shybovycha/buck,davido/buck,shybovycha/buck,k21/buck,raviagarwal7/buck,SeleniumHQ/buck,davido/buck,dsyang/buck,ilya-klyuchnikov/buck,vschs007/buck,shs96c/buck,brettwooldridge/buck,grumpyjames/buck,JoelMarcey/buck,dsyang/buck,LegNeato/buck,daedric/buck,shs96c/buck,OkBuilds/buck,justinmuller/buck,romanoid/buck,sdwilsh/buck,sdwilsh/buck,rmaz/buck,sdwilsh/buck,sdwilsh/buck,shs96c/buck,romanoid/buck,marcinkwiatkowski/buck,vschs007/buck,vschs007/buck,clonetwin26/buck,sdwilsh/buck,zhan-xiong/buck,k21/buck,JoelMarcey/buck,ilya-klyuchnikov/buck,davido/buck,marcinkwiatkowski/buck,LegNeato/buck,kageiit/buck,Addepar/buck,romanoid/buck,OkBuilds/buck,vschs007/buck,romanoid/buck,ilya-klyuchnikov/buck,kageiit/buck,darkforestzero/buck,dsyang/buck,justinmuller/buck,Addepar/buck,clonetwin26/buck,darkforestzero/buck,nguyentruongtho/buck,raviagarwal7/buck,zhan-xiong/buck,kageiit/buck,darkforestzero/buck,shs96c/buck,romanoid/buck,janicduplessis/buck,LegNeato/buck,k21/buck,marcinkwiatkowski/buck,romanoid/buck,SeleniumHQ/buck,davido/buck,justinmuller/buck,daedric/buck,clonetwin26/buck,raviagarwal7/buck,shs96c/buck,illicitonion/buck,marcinkwiatkowski/buck,JoelMarcey/buck,brettwooldridge/buck,facebook/buck,darkforestzero/buck,illicitonion/buck,rmaz/buck,daedric/buck,raviagarwal7/buck,daedric/buck,brettwooldridge/buck,kageiit/buck,Addepar/buck,justinmuller/buck,zpao/buck,robbertvanginkel/buck,k21/buck,brettwooldridge/buck,robbertvanginkel/buck,clonetwin26/buck,darkforestzero/buck,rmaz/buck,romanoid/buck,robbertvanginkel/buck,OkBuilds/buck,kageiit/buck,facebook/buck,shybovycha/buck,illicitonion/buck,ilya-klyuchnikov/buck,zpao/buck,darkforestzero/buck,clonetwin26/buck,shybovycha/buck,romanoid/buck,raviagarwal7/buck,zpao/buck,JoelMarcey/buck,k21/buck,janicduplessis/buck,daedric/buck,marcinkwiatkowski/buck,rmaz/buck,OkBuilds/buck,JoelMarcey/buck,marcinkwiatkowski/buck,daedric/buck,clonetwin26/buck,vschs007/buck,robbertvanginkel/buck,LegNeato/buck,Addepar/buck,rmaz/buck,illicitonion/buck,zhan-xiong/buck,marcinkwiatkowski/buck,dsyang/buck,raviagarwal7/buck,OkBuilds/buck,grumpyjames/buck,raviagarwal7/buck,Addepar/buck,dsyang/buck,daedric/buck,shybovycha/buck,rmaz/buck,zhan-xiong/buck,nguyentruongtho/buck,janicduplessis/buck,grumpyjames/buck,shybovycha/buck,clonetwin26/buck,facebook/buck,justinmuller/buck,grumpyjames/buck,davido/buck,SeleniumHQ/buck,OkBuilds/buck,ilya-klyuchnikov/buck,vschs007/buck,LegNeato/buck,shs96c/buck,sdwilsh/buck,OkBuilds/buck,grumpyjames/buck,Addepar/buck,davido/buck,marcinkwiatkowski/buck,k21/buck,robbertvanginkel/buck,illicitonion/buck,shs96c/buck,nguyentruongtho/buck,LegNeato/buck,marcinkwiatkowski/buck,davido/buck,LegNeato/buck,nguyentruongtho/buck,JoelMarcey/buck,ilya-klyuchnikov/buck,LegNeato/buck,darkforestzero/buck,JoelMarcey/buck,LegNeato/buck,shs96c/buck,nguyentruongtho/buck,justinmuller/buck,OkBuilds/buck,janicduplessis/buck,SeleniumHQ/buck,zhan-xiong/buck,JoelMarcey/buck,LegNeato/buck,romanoid/buck,dsyang/buck,k21/buck,darkforestzero/buck,shybovycha/buck,illicitonion/buck,zhan-xiong/buck,SeleniumHQ/buck,justinmuller/buck,shs96c/buck,grumpyjames/buck,davido/buck,zhan-xiong/buck,JoelMarcey/buck,darkforestzero/buck,janicduplessis/buck,shybovycha/buck,romanoid/buck,clonetwin26/buck,dsyang/buck,illicitonion/buck,Addepar/buck,rmaz/buck,LegNeato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