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.
PR-URL: https://github.com/nodejs/node/pull/6552
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Shigeki Ohtsu <ohtsu@iij.ad.jp>
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