mips: fix label naming in generated assembly
mips: fix label naming in generated assembly

Label names need to be function specific, else they clash when we have more
than one function in a file.

mojaves/orc,MOXfiles/orc,mojaves/orc,jpakkane/orc,MOXfiles/orc,Distrotech/orc,ijsf/OpenWebRTC-orc,MOXfiles/orc,Distrotech/orc,jpakkane/orc,okuoku/nmosh-orc,okuoku/nmosh-orc,ijsf/OpenWebRTC-orc,okuoku/nmosh-orc,jpakkane/orc,Distrotech/orc,ijsf/OpenWebRTC-orc,mojaves/orc