aarch64: mmu: Fix typo in mask definition

Fix typo in mask definition (s/UPPER/LOWER)

Signed-off-by: Carlo Caione <[email protected]>

Author: carlocaione

arch/arm/core/aarch64/mmu/arm_mmu.h

@@ -114,4 +114,4 @@
 #define DESC_ATTRS_UPPER_MASK	GENMASK(63, 51)
 #define DESC_ATTRS_LOWER_MASK	GENMASK(11, 2)
 
-#define DESC_ATTRS_MASK		(DESC_ATTRS_UPPER_MASK | DESC_ATTRS_UPPER_MASK)
+#define DESC_ATTRS_MASK		(DESC_ATTRS_UPPER_MASK | DESC_ATTRS_LOWER_MASK)