qemu_v8: build TF-A with SVE support and get rid of sve=off in -cpu max

Remove the sve=off exception from the -cpu max setting. This requires a
couple of flags when building TF-A: ENABLE_SVE_FOR_{NS,SWD}=1.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
diff --git a/qemu_v8.mk b/qemu_v8.mk
index 81773bc..e1501fe 100644
--- a/qemu_v8.mk
+++ b/qemu_v8.mk
@@ -160,6 +160,8 @@
 	BL33=$(BL33_BIN) \
 	PLAT=qemu \
 	QEMU_USE_GIC_DRIVER=$(TFA_GIC_DRIVER) \
+	ENABLE_SVE_FOR_NS=1 \
+	ENABLE_SVE_FOR_SWD=1 \
 	BL32_RAM_LOCATION=tdram \
 	DEBUG=$(TF_A_DEBUG) \
 	LOG_LEVEL=$(TF_A_LOGLVL)
@@ -407,7 +409,7 @@
 QEMU_XEN	?= -drive if=none,file=$(XEN_EXT4),format=raw,id=hd1 \
 		   -device virtio-blk-device,drive=hd1
 else
-QEMU_CPU	?= max,sve=off,pauth-impdef=on
+QEMU_CPU	?= max,pauth-impdef=on
 QEMU_SMP 	?= 2
 QEMU_MEM 	?= 1057
 QEMU_VIRT	= false