arm64: v8.3: Support for weaker release consistency

ARMv8.3 adds new instructions to support Release Consistent
processor consistent (RCpc) model, which is weaker than the
RCsc model.

Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

arch/arm64/kernel/cpuinfo.c

@@ -67,6 +67,7 @@ static const char *const hwcap_str[] = {
 	"asimdrdm",
 	"jscvt",
 	"fcma",
+	"lrcpc",
 	NULL
 };