MIPS: kernel: include probes-common.h header in branch.c

arch/mips/kernel/branch.c:876:5: error: no previous prototype for '__insn_is_compact_branch' [-Werror=missing-prototypes]

Signed-off-by: Pujin Shi <shipujin.t@gmail.com>
Signed-off-by: Pujin Shi <shipj@lemote.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>