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-hyp b/tf_config/fvp-spm-hyp
index f28c804..ed57c1f 100644
--- a/tf_config/fvp-spm-hyp
+++ b/tf_config/fvp-spm-hyp
@@ -7,5 +7,6 @@
 CTX_INCLUDE_EL2_REGS=1
 ARM_ARCH_MINOR=5
 CTX_INCLUDE_PAUTH_REGS=1
+CTX_INCLUDE_MTE_REGS=1
 BRANCH_PROTECTION=1
 SP_LAYOUT_FILE=${tftf_root}/build/fvp/${bin_mode}/sp_layout.json