disable SSE4a 2-imm8 instr when XED_AMD_ENABLED is not set
disable SSE4a 2-imm8 instr when XED_AMD_ENABLED is not set

Change-Id: I043da24e55e787c151343c112ae01be49af48ace
(cherry picked from commit aec3f7815c6a162da5dac4a71ac602eb877ce819)

intelxed/xed,intelxed/xed,intelxed/xed,intelxed/xed