environment.py: Detect all mips* architectures (#8108)
environment.py: Detect all mips* architectures (#8108)

* environment.py: Detect all mips* architectures

We have more than those values, like:

mipsel
mipsel-nf
mips32el
mips33el-nf
mipsisa32r6
mipsisa32r6el

So lets just detect them all.

Sorry I forgot about 64bit and closed https://github.com/mesonbuild/meson/pull/8106

But now it even detects:

mipsisa64r6
mipsisa64r6el

* Make dcbaker happy
jpakkane/meson,QuLogic/meson,jpakkane/meson,jpakkane/meson,mesonbuild/meson,jpakkane/meson,jpakkane/meson,QuLogic/meson,mesonbuild/meson,QuLogic/meson,QuLogic/meson,pexip/meson,mesonbuild/meson,pexip/meson,mesonbuild/meson,QuLogic/meson,pexip/meson,jpakkane/meson,QuLogic/meson,pexip/meson,pexip/meson,mesonbuild/meson,pexip/meson,mesonbuild/meson,mesonbuild/meson,pexip/meson,jpakkane/meson,pexip/meson,QuLogic/meson,jpakkane/meson,QuLogic/meson,mesonbuild/meson,mesonbuild/meson,QuLogic/meson,pexip/meson,pexip/meson,mesonbuild/meson,jpakkane/meson