refactor(rse): change all occurrences of RSS to RSE

Changes all occurrences of "RSS" and "rss" in the code and build files
to "RSE" and "rse".

Signed-off-by: Tamas Ban <tamas.ban@arm.com>
Change-Id: I9f72ad36ec233d7eaac3ce9e2f2b010130e1fa94
diff --git a/drivers/arm/rse/rse_comms.mk b/drivers/arm/rse/rse_comms.mk
index 0d1e308..a1abc6a 100644
--- a/drivers/arm/rse/rse_comms.mk
+++ b/drivers/arm/rse/rse_comms.mk
@@ -4,25 +4,25 @@
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
-$(warning "RSS driver is an experimental feature")
+$(warning "RSE driver is an experimental feature")
 
-RSS_COMMS_SOURCES	:=	$(addprefix drivers/arm/rss/,			\
-					rss_comms.c				\
-					rss_comms_protocol.c			\
-					rss_comms_protocol_embed.c		\
-					rss_comms_protocol_pointer_access.c	\
+RSE_COMMS_SOURCES	:=	$(addprefix drivers/arm/rse/,			\
+					rse_comms.c				\
+					rse_comms_protocol.c			\
+					rse_comms_protocol_embed.c		\
+					rse_comms_protocol_pointer_access.c	\
 				)
 
 # Default to MHUv2 if PLAT_MHU_VERSION undefined
 PLAT_MHU_VERSION ?= 2
 
 ifeq (${PLAT_MHU_VERSION}, 3)
-RSS_COMMS_SOURCES	+=	$(addprefix drivers/arm/mhu/,			\
+RSE_COMMS_SOURCES	+=	$(addprefix drivers/arm/mhu/,			\
 					mhu_v3_x.c				\
 					mhu_wrapper_v3_x.c			\
 				)
 else ifeq (${PLAT_MHU_VERSION}, 2)
-RSS_COMMS_SOURCES	+=	$(addprefix drivers/arm/mhu/,			\
+RSE_COMMS_SOURCES	+=	$(addprefix drivers/arm/mhu/,			\
 					mhu_v2_x.c				\
 					mhu_wrapper_v2_x.c			\
 				)
@@ -30,5 +30,5 @@
 $(error Unsupported MHU version)
 endif
 
-PLAT_INCLUDES		+=	-Idrivers/arm/rss		\
+PLAT_INCLUDES		+=	-Idrivers/arm/rse		\
 				-Idrivers/arm/mhu