[WIP][KERNEL][TEST] Use gcc 4.9 toolchain to build kernel
[WIP][KERNEL][TEST] Use gcc 4.9 toolchain to build kernel

Change-Id: Ia3e350222c5def212ea5895ef3d025a8391b696a

quanganh2627/android_device_asus_a500cg-1,quanganh2627/android_device_asus_a500cg-1,quanganh2627/android_device_asus_a500cg-1,quanganh2627/android_device_asus_a500cg-1,quanganh2627/android_device_asus_a500cg-1