match: Improve broadcast opsize matching
match: Improve broadcast opsize matching

Broadcasting operand size is different from the original
operand size because 32b or 64b element is repeated to form a vector.
So when matching a broadcasting operand, opsize should be treated
differently.
The broadcasting element size is specified in the decorator information.

Signed-off-by: Jin Kyu Song <636a629b48a15ad840070a3dd8c6df980563dd68@intel.com>

techkey/nasm,projedi/nasm,techkey/nasm,projedi/nasm,projedi/nasm,techkey/nasm,projedi/nasm,techkey/nasm,techkey/nasm,projedi/nasm