feat(mte): enable MTE support in SPM tests

Adds MTE support parameters to FVP models.
Enables MTE support in relevant tf-a builds.

Signed-off-by: Maksims Svecovs <maksims.svecovs@arm.com>
Change-Id: Ib31275b165d955c308af8ffcb38a532a2d3357dc
diff --git a/tf_config/fvp-spm-optee-sp b/tf_config/fvp-spm-optee-sp
index 95fc011..caed5fb 100644
--- a/tf_config/fvp-spm-optee-sp
+++ b/tf_config/fvp-spm-optee-sp
@@ -1,5 +1,6 @@
 ARM_ARCH_MINOR=5
 CTX_INCLUDE_PAUTH_REGS=1
+CTX_INCLUDE_MTE_REGS=1
 BRANCH_PROTECTION=1
 ARM_SPMC_MANIFEST_DTS=plat/arm/board/fvp/fdts/fvp_spmc_optee_sp_manifest.dts
 CROSS_COMPILE=aarch64-none-elf-