MIPS: uasm: Add lb uasm instruction

It will be used later on by bpf-jit

[ralf@linux-mips.org: Resolved conflict.]

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>

diff --cc arch/mips/include/asm/uasm.h
Simple merge

diff --cc arch/mips/mm/uasm-micromips.c
Simple merge

diff --cc arch/mips/mm/uasm-mips.c
Simple merge

diff --cc arch/mips/mm/uasm.c
Simple merge