not forwarded elfutils mips patches

Hi,

with elfutils 0.180, I disabled some mips patches which didn't apply anymore,
and then forgot about them for the upload.

mips_readelf_w.patch
0001-Ignore-differences-between-mips-machine-identifiers.patch
0002-Add-support-for-mips64-abis-in-mips_retval.c.patch
0003-Add-mips-n64-relocation-format-hack.patch
mips_cfi.patch

Please could yu have alook which ones are still necessary, and probably forward
those upstream?

Thanks, Matthias