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-tc2-spm b/tf_config/fvp-tc2-spm
index 555ed3d..476875f 100644
--- a/tf_config/fvp-tc2-spm
+++ b/tf_config/fvp-tc2-spm
@@ -4,6 +4,7 @@
 CTX_INCLUDE_EL2_REGS=1
 CTX_INCLUDE_PAUTH_REGS=1
 ENABLE_FEAT_MTE=1
+ENABLE_FEAT_MTE2=1
 ENABLE_SVE_FOR_SWD=1
 PLAT=tc
 SCP_BL2=/dev/null