Add ARMv8.2 ID_AA64MMFR0_EL1.PARange value

If an implementation of ARMv8.2 includes ARMv8.2-LPA, the value 0b0110
is permitted in ID_AA64MMFR0_EL1.PARange, which means that the Physical
Address range supported is 52 bits (4 PiB). It is a reserved value
otherwise.

Change-Id: Ie0147218e9650aa09f0034a9ee03c1cca8db908a
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
diff --git a/include/lib/aarch64/arch.h b/include/lib/aarch64/arch.h
index cb7dab7..1cf880f 100644
--- a/include/lib/aarch64/arch.h
+++ b/include/lib/aarch64/arch.h
@@ -135,6 +135,7 @@
 #define PARANGE_0011	U(42)
 #define PARANGE_0100	U(44)
 #define PARANGE_0101	U(48)
+#define PARANGE_0110	U(52)
 
 #define ID_AA64MMFR0_EL1_TGRAN4_SHIFT		U(28)
 #define ID_AA64MMFR0_EL1_TGRAN4_MASK		U(0xf)