sim: mips: Change E_MIPS_* to EF_MIPS_*

According to we have changed all E_MIPS_* to EF_MIPS_* in binutils
and glibc, we also need to change it here to keep same style.
We can refer to this commit record:
https://sourceware.org/pipermail/binutils/2023-October/129904.html

Approved-By: Pedro Alves <pedro@palves.net>
1 file changed