plat/qemu: add "max" cpu support

Add support to qemu "max" cpu for both "qemu" ('virt') and
"qemu_sbsa" ('sbsa-ref') platforms.

Change-Id: I36e45c0a3c4e30ba546d2a3cb44dfef11a680305
Signed-off-by: Leif Lindholm <leif@nuviainc.com>
diff --git a/plat/qemu/qemu_sbsa/platform.mk b/plat/qemu/qemu_sbsa/platform.mk
index d45f3f1..9fb30ad 100644
--- a/plat/qemu/qemu_sbsa/platform.mk
+++ b/plat/qemu/qemu_sbsa/platform.mk
@@ -48,7 +48,8 @@
 				${PLAT_QEMU_COMMON_PATH}/qemu_bl1_setup.c
 
 BL1_SOURCES		+=	lib/cpus/aarch64/cortex_a57.S			\
-				lib/cpus/aarch64/cortex_a72.S
+				lib/cpus/aarch64/cortex_a72.S			\
+				lib/cpus/aarch64/qemu_max.S			\
 
 BL2_SOURCES		+=	drivers/io/io_semihosting.c			\
 				drivers/io/io_storage.c				\
@@ -76,6 +77,7 @@
 
 BL31_SOURCES		+=	lib/cpus/aarch64/cortex_a57.S			\
 				lib/cpus/aarch64/cortex_a72.S			\
+				lib/cpus/aarch64/qemu_max.S			\
 				lib/semihosting/semihosting.c			\
 				lib/semihosting/${ARCH}/semihosting_call.S	\
 				plat/common/plat_psci_common.c			\