Remove partially qualified asm helper functions

Each ARM Trusted Firmware image should know in which EL it is running
and it should use the corresponding register directly instead of reading
currentEL and knowing which asm register to read/write

Change-Id: Ief35630190b6f07c8fbb7ba6cb20db308f002945
diff --git a/bl1/bl1_main.c b/bl1/bl1_main.c
index 401a525..dbf6c9d 100644
--- a/bl1/bl1_main.c
+++ b/bl1/bl1_main.c
@@ -48,7 +48,7 @@
 void bl1_main(void)
 {
 #if DEBUG
-	unsigned long sctlr_el3 = read_sctlr();
+	unsigned long sctlr_el3 = read_sctlr_el3();
 #endif
 	unsigned long bl2_base;
 	unsigned int load_type = TOP_LOAD, spsr;