arm64: probes: Handle probes on hinted conditional branch instructions

BC.cond instructions introduced by FEAT_HBC cannot be executed
out-of-line, like other branch instructions. However, they can be
simulated in the same way as B.cond instructions.

Extend the B.cond decoder mask to match BC.cond instructions as well,
and handle them using the existing B.cond simulation path.

Fixes: 7f86d128 ("arm64: add HWCAP for FEAT_HBC (hinted conditional branches)")
Cc: <stable@vger.kernel.org>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>