build(mpam): add new build option CTX_INCLUDE_MPAM_REGS

New build option CTX_INCLUDE_MPAM_REGS is added to select
if the firmware needs to save the MPAM EL2 registers during world
switches. This option is currently disabled as MPAM is only
enabled for NS world.

Signed-off-by: Arvind Ram Prakash <arvind.ramprakash@arm.com>
Change-Id: Ie2e5e184cdb65f7e1a98d8fe81590253fd859679
diff --git a/Makefile b/Makefile
index a9c9c4f..e2de2c0 100644
--- a/Makefile
+++ b/Makefile
@@ -1170,6 +1170,7 @@
 	CTX_INCLUDE_AARCH32_REGS \
 	CTX_INCLUDE_FPREGS \
 	CTX_INCLUDE_EL2_REGS \
+	CTX_INCLUDE_MPAM_REGS \
 	DEBUG \
 	DYN_DISABLE_AUTH \
 	EL3_EXCEPTION_HANDLING \
@@ -1320,6 +1321,7 @@
 	CTX_INCLUDE_AARCH32_REGS \
 	CTX_INCLUDE_FPREGS \
 	CTX_INCLUDE_PAUTH_REGS \
+	CTX_INCLUDE_MPAM_REGS \
 	EL3_EXCEPTION_HANDLING \
 	CTX_INCLUDE_MTE_REGS \
 	CTX_INCLUDE_EL2_REGS \