refactor(qemu): handle SPM_MM builds

SPM_MM is not compatible with ENABLE_SVE_FOR_NS and breaks build early:

> Including SPM Management Mode (MM) makefile
> services/std_svc/spm/spm_mm/spm_mm.mk:14: *** "Error: SPM_MM is not compatible with ENABLE_SVE_FOR_NS". Stop.

Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Change-Id: Iabe181647fce00a432ae11dc4599b71619364c24
diff --git a/plat/qemu/qemu_sbsa/platform.mk b/plat/qemu/qemu_sbsa/platform.mk
index 876826a..b4d9138 100644
--- a/plat/qemu/qemu_sbsa/platform.mk
+++ b/plat/qemu/qemu_sbsa/platform.mk
@@ -7,16 +7,17 @@
 PLAT_QEMU_PATH		:=	plat/qemu/qemu_sbsa
 PLAT_QEMU_COMMON_PATH	:=	plat/qemu/common
 
-include plat/qemu/common/common.mk
-
-CRASH_REPORTING	:=	1
-
 ifeq (${SPM_MM},1)
 NEED_BL32		:=	yes
 EL3_EXCEPTION_HANDLING	:=	1
 GICV2_G0_FOR_EL3	:=	1
 endif
 
+include plat/qemu/common/common.mk
+
+CRASH_REPORTING	:=	1
+
+
 # Enable new version of image loading on QEMU platforms
 LOAD_IMAGE_V2		:=	1