feat(mte): add mte2 to build

Currently mte2 is all wrapped with FEAT_MTE but in below change
https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/26171
we are adding seperation for FEAT_MTE2.

Add FEAT_MTE2 to all SPM builds.

Change-Id: I573ff10ba0dfb224b53f273a82bbecea8b1cd832
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
diff --git a/tf_config/fvp-spm-measured-boot b/tf_config/fvp-spm-measured-boot
index 6f4516e..2887cdb 100644
--- a/tf_config/fvp-spm-measured-boot
+++ b/tf_config/fvp-spm-measured-boot
@@ -6,6 +6,7 @@
 ARM_ARCH_MINOR=5
 CTX_INCLUDE_PAUTH_REGS=1
 ENABLE_FEAT_MTE=1
+ENABLE_FEAT_MTE2=1
 BRANCH_PROTECTION=1
 SP_LAYOUT_FILE=${tftf_root}/build/fvp/${bin_mode}/sp_layout.json
 MEASURED_BOOT=1