Add test configurations for FEAT_RME

The patch makes the following changes:
* Adds test configurations for the following scenarios:
  ==================================================
  BL32	RMM	BL33	Test configuration
  ==================================================
  SPM	TRP	TFTF	fvp-spm.trp.tftf-tftf.rme
  None	TRP	TFTF	fvp-trp.tftf-tftf.rme

* Adds an FVP model that supports FEAT_RME

* Updates tf-cov-make with FEAT_RME build configuration

Change-Id: Ibc404c0c60022406027dba06bbcb230df3ab133e
Signed-off-by: Zelalem Aweke <zelalem.aweke@arm.com>
diff --git a/script/tf-coverity/tf-cov-make b/script/tf-coverity/tf-cov-make
index f402ee4..a5e4419 100755
--- a/script/tf-coverity/tf-cov-make
+++ b/script/tf-coverity/tf-cov-make
@@ -169,6 +169,9 @@
 # FVP-R platform
 clean_build PLAT=fvp_r $(common_flags) all
 
+# FEAT_RME
+clean_build $fvp_common_flags ENABLE_RME=1
+
 #
 # Juno platform
 # We'll use the following flags for all Juno builds.