fvp: Enable the Activity Monitor Unit extensions by default

Change-Id: I96de88f44c36681ad8a70430af8e01016394bd14
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
diff --git a/plat/arm/board/fvp/platform.mk b/plat/arm/board/fvp/platform.mk
index 1b50296..7edbd3d 100644
--- a/plat/arm/board/fvp/platform.mk
+++ b/plat/arm/board/fvp/platform.mk
@@ -147,6 +147,9 @@
 # Disable the PSCI platform compatibility layer
 ENABLE_PLAT_COMPAT	:= 	0
 
+# Enable Activity Monitor Unit extensions by default
+ENABLE_AMU			:=	1
+
 ifneq (${ENABLE_STACK_PROTECTOR},0)
 PLAT_BL_COMMON_SOURCES	+=	plat/arm/board/fvp/fvp_stack_protector.c
 endif