Do not enable SVE on pre-v8.2 platforms

Pre-v8.2 platforms such as the Juno platform does not have
the Scalable Vector Extensions implemented and so the build
option ENABLE_SVE is set to zero.

This has a minor performance improvement with no functional
impact.

Change-Id: Ib072735db7a0247406f8b60e325b7e28b1e04ad1
Signed-off-by: David Cunado <david.cunado@arm.com>
diff --git a/plat/rockchip/rk3368/platform.mk b/plat/rockchip/rk3368/platform.mk
index f6960cf..d3c6eef 100644
--- a/plat/rockchip/rk3368/platform.mk
+++ b/plat/rockchip/rk3368/platform.mk
@@ -48,6 +48,9 @@
 				${RK_PLAT_SOC}/drivers/soc/soc.c		\
 				${RK_PLAT_SOC}/drivers/ddr/ddr_rk3368.c		\
 
-ENABLE_PLAT_COMPAT	:=      0
+ENABLE_PLAT_COMPAT	:=	0
 
 $(eval $(call add_define,PLAT_EXTRA_LD_SCRIPT))
+
+# Do not enable SVE
+ENABLE_SVE_FOR_NS	:=	0