bdwgc: no need to set ARM_INSTRUCTION_SET anymore
It was necessary in 2012 (https://patchwork.openembedded.org/patch/26155/),
but it appears to no longer be required.
Signed-off-by: Chris Laplante <chris.laplante@agilent.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>