feat(mte): adds feature detection for MTE_PERM

Adds feature detection for v8.9 feature FEAT_MTE_PERM. Adds respective
ID_AA64PFR2_EL1 definitions and ENABLE_FEAT_MTE_PERM define.

Change-Id: If24b42f1207154e639016b0b840b2d91c6ee13d4
Signed-off-by: Maksims Svecovs <maksims.svecovs@arm.com>
Signed-off-by: Harrison Mutai <harrison.mutai@arm.com>
diff --git a/Makefile b/Makefile
index f33a12e..4b96be1 100644
--- a/Makefile
+++ b/Makefile
@@ -1245,6 +1245,7 @@
 	ENABLE_FEAT_S1POE \
 	ENABLE_FEAT_GCS \
 	ENABLE_FEAT_VHE \
+	ENABLE_FEAT_MTE_PERM \
 	ENABLE_MPAM_FOR_LOWER_ELS \
 	ENABLE_RME \
 	ENABLE_SPE_FOR_NS \
@@ -1389,6 +1390,7 @@
 	ENABLE_FEAT_S2POE \
 	ENABLE_FEAT_S1POE \
 	ENABLE_FEAT_GCS \
+	ENABLE_FEAT_MTE_PERM \
 	FEATURE_DETECTION \
 	TWED_DELAY \
 	ENABLE_FEAT_TWED \