Revert "Swicth to toolchain gcc-4.6"
Revert "Swicth to toolchain gcc-4.6"

This reverts commit c914cc99c9900b5838748ae3488c5b6a37d14ed2.

xorware/android_build,fallouttester/platform_manifest,RR-msm7x30/platform_manifest,xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build,Hybrid-Power/startsync,see4ri/lolili,knone1/platform_manifest,ND-3500/platform_manifest,pranav01/platform_manifest,hagar006/platform_manifest