x86_64: Clobber r8 to r11 and xmm0 to xmm15

This clobbers r8 to r11 and xmm0 to xmm15, so that
they can be reloaded after an external C call.

Change-Id: If5cac97e475083912026309891dc332f14f8683a
Signed-off-by: Chao-ying Fu <chao-ying.fu@intel.com>
1 file changed