AMDGPU: MC support for v_cvt_scale_[f16|f32]_fp8 of gfx950. (#117380)
OPSEL ASM Syntax: opsel:[x,y,z]
where,
opsel[x] = Inst{11} = src0_modifier{2}
opsel[y] = Inst{12} = src1_modifier{2}
opsel[z] = Inst{14} = src0_modifier{3}
Note: Conventional Inst{13} i.e. OPSEL[2] is ignored in asm syntax.
Co-authored-by: Pravin Jagtap <Pravin.Jagtap@amd.com>