tinymembench: Disable internal assembler on mips
tinymembench: Disable internal assembler on mips

Fixes
 mips-32.S:108:15: error: invalid reassignment of non-absolute variable 'DST'
|     .set DST, $a0
|               ^

Signed-off-by: Khem Raj <729d64b6f67515e258459a5f6d20ec88b2caf8df@gmail.com>

kraj/meta-clang,kraj/meta-clang,kraj/meta-clang