plat/arm: Add support for SGM775

Add support for System Guidance for Mobile platform SGM775

Change-Id: I2442a50caae8f597e5e5949cd48f695cf75d9653
Signed-off-by: Nariman Poushin <nariman.poushin@linaro.org>
diff --git a/plat/arm/css/sgm/include/plat_macros.S b/plat/arm/css/sgm/include/plat_macros.S
new file mode 100644
index 0000000..d877ef8
--- /dev/null
+++ b/plat/arm/css/sgm/include/plat_macros.S
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#ifndef __PLAT_MACROS_S__
+#define __PLAT_MACROS_S__
+
+#include <cci_macros.S>
+#include <css_macros.S>
+
+/* ---------------------------------------------
+ * The below required platform porting macro
+ * prints out relevant platform registers
+ * whenever an unhandled exception is taken in
+ * BL31.
+ * ---------------------------------------------
+ */
+.macro plat_crash_print_regs
+css_print_gic_regs
+print_cci_regs
+.endm
+
+#endif /* __PLAT_MACROS_S__ */