feat(cpu): add support for Hayes CPU

This patch adds the basic CPU library code to support the Hayes CPU
in TF-A. This CPU is based on the Klein core so that library code
has been adapted for use here.

Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: If0e0070cfa77fee8f6eebfee13d3c4f209ad84fc
diff --git a/plat/arm/board/fvp/platform.mk b/plat/arm/board/fvp/platform.mk
index 2f8a65e..73f09e5 100644
--- a/plat/arm/board/fvp/platform.mk
+++ b/plat/arm/board/fvp/platform.mk
@@ -138,7 +138,8 @@
 					lib/cpus/aarch64/cortex_demeter.S	\
 					lib/cpus/aarch64/cortex_a65.S		\
 					lib/cpus/aarch64/cortex_a65ae.S		\
-					lib/cpus/aarch64/cortex_a78c.S
+					lib/cpus/aarch64/cortex_a78c.S		\
+					lib/cpus/aarch64/cortex_hayes.S
 	endif
 	# AArch64/AArch32 cores
 	FVP_CPU_LIBS	+=	lib/cpus/aarch64/cortex_a55.S		\