feat(cpus): add support for blackhawk cpu

Add basic CPU library code to support the Blackhawk CPU,
BlackHawk core is based out of Hunter ELP core,
so overall library code was adapted based on that.

Change-Id: I4750e774732218ee669dceb734cd107f46b78492
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
diff --git a/plat/arm/board/fvp/platform.mk b/plat/arm/board/fvp/platform.mk
index 728225a..e6a207c 100644
--- a/plat/arm/board/fvp/platform.mk
+++ b/plat/arm/board/fvp/platform.mk
@@ -199,7 +199,8 @@
 					lib/cpus/aarch64/cortex_hunter_elp_arm.S \
 					lib/cpus/aarch64/cortex_x2.S		\
 					lib/cpus/aarch64/neoverse_poseidon.S	\
-					lib/cpus/aarch64/cortex_chaberton.S
+					lib/cpus/aarch64/cortex_chaberton.S	\
+					lib/cpus/aarch64/cortex_blackhawk.S
 	endif
 	# AArch64/AArch32 cores
 	FVP_CPU_LIBS	+=	lib/cpus/aarch64/cortex_a55.S		\