chore(2.6): update FVP version for v2.6 release

Updates common FVP model version from 11.15/14 to 11.16/16
Updates Morello FVP model version from 0.10/542 to 0.11/19
Updates total compute model version to 11.16/16

Signed-off-by: Maksims Svecovs <maksims.svecovs@arm.com>
Change-Id: I8f8d4a622fb01f0b1dbf43c5140803a2b87be037
diff --git a/utils.sh b/utils.sh
index 8c7170b..1a4e29b 100644
--- a/utils.sh
+++ b/utils.sh
@@ -306,8 +306,8 @@
 model_flavour_11_12="Linux64_GCC-6.4"
 
 # Model revisions
-model_version="${model_version:-11.15}"
-model_build="${model_build:-14}"
+model_version="${model_version:-11.16}"
+model_build="${model_build:-16}"
 model_flavour="${model_flavour:-Linux64_GCC-6.4}"
 
 # Model snapshots from filer are not normally not accessible from developer