SPM: Rename files for consistency

Rename files prefixed by sp_ to spm_.

Change-Id: Ie3016a4c4ac5987fe6fdd734c6b470c60954e23d
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

services/std_svc/spm/spm.mk

@@ -16,11 +16,11 @@ include lib/sprt/sprt_host.mk
 SPM_SOURCES	:=	$(addprefix services/std_svc/spm/,	\
 			${ARCH}/spm_helpers.S			\
 			${ARCH}/spm_shim_exceptions.S		\
-			sp_setup.c				\
-			sp_xlat.c				\
 			spci.c					\
 			spm_buffers.c				\
 			spm_main.c				\
+			spm_setup.c				\
+			spm_xlat.c				\
 			sprt.c)					\
 			${SPRT_LIB_SOURCES}
 

services/std_svc/spm_deprecated/spm.mk

@@ -15,8 +15,8 @@ SPM_SOURCES	:=	$(addprefix services/std_svc/spm_deprecated/, \
 			${ARCH}/spm_helpers.S			\
 			${ARCH}/spm_shim_exceptions.S		\
 			spm_main.c				\
-			sp_setup.c				\
-			sp_xlat.c)
+			spm_setup.c				\
+			spm_xlat.c)
 
 
 # Let the top-level Makefile know that we intend to include a BL32 image