Replace __ASSEMBLY__ with compiler-builtin __ASSEMBLER__

NOTE: __ASSEMBLY__ macro is now deprecated in favor of __ASSEMBLER__.

All common C compilers predefine a macro called __ASSEMBLER__ when
preprocessing a .S file. There is no reason for TF-A to define it's own
__ASSEMBLY__ macro for this purpose instead. To unify code with the
export headers (which use __ASSEMBLER__ to avoid one extra dependency),
let's deprecate __ASSEMBLY__ and switch the code base over to the
predefined standard.

Change-Id: Id7d0ec8cf330195da80499c68562b65cb5ab7417
Signed-off-by: Julius Werner <jwerner@chromium.org>
diff --git a/plat/rockchip/common/pmusram/cpus_on_fixed_addr.h b/plat/rockchip/common/pmusram/cpus_on_fixed_addr.h
index b22ddc2..34af29a 100644
--- a/plat/rockchip/common/pmusram/cpus_on_fixed_addr.h
+++ b/plat/rockchip/common/pmusram/cpus_on_fixed_addr.h
@@ -26,7 +26,7 @@
 #define PM_WARM_BOOT_SHT	0
 #define PM_WARM_BOOT_BIT	(1 << PM_WARM_BOOT_SHT)
 
-#ifndef __ASSEMBLY__
+#ifndef __ASSEMBLER__
 
 struct psram_data_t {
 	uint64_t sp;
@@ -50,6 +50,6 @@
 
 extern void *sys_sleep_flag_sram;
 
-#endif  /* __ASSEMBLY__ */
+#endif  /* __ASSEMBLER__ */
 
 #endif