target/mips: Use cpu_*_mmuidx_ra instead of MMU_MODE*_SUFFIX

target/mips: Use cpu_*_mmuidx_ra instead of MMU_MODE*_SUFFIX

The separate suffixed functions were used to construct
some do_##insn function switched on mmu_idx.  The interface
is exactly identical to the *_mmuidx_ra functions.  Replace
them directly and remove the constructions.

Cc: Aurelien Jarno <[email protected]>
Cc: Aleksandar Rikalo <[email protected]>
Tested-by: Philippe Mathieu-Daudé <[email protected]>
Reviewed-by: Aleksandar Markovic <[email protected]>
Reviewed-by: Alex Bennée <[email protected]>
Signed-off-by: Richard Henderson <[email protected]>