Regenerate asm files with Makefile and CC=gcc and ASM=gcc where
gcc-5.4.0. 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/11021
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>