Regenerate asm files with Makefile and CC=gcc and ASM=gcc where
gcc-4.8.4. Also asm files in asm_obsolete dir to support old compiler
and assembler are regenerated without CC and ASM envs.
Fixes: https://github.com/nodejs/node/issues/6458
PR-URL: https://github.com/nodejs/node/pull/6550
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Shigeki Ohtsu