ci(ivy): load Ivy partition in spm reset to bl31

A fourth test partition has been introduced ("Ivy" S-EL0 partition
using an S-EL1 shim). For the case where BL2 is absent and BL31 is
built with RESET_TO_BL31 option, this new partition has to be
pre-loaded in the model command line.

Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I0a5e05651738de6a28b95a0e23a15a744ba750f6
diff --git a/fvp_utils.sh b/fvp_utils.sh
index 5c0f0f9..b2ad052 100644
--- a/fvp_utils.sh
+++ b/fvp_utils.sh
@@ -23,6 +23,7 @@
 sp1_addr="${sp1_addr:-0x7000000}"
 sp2_addr="${sp2_addr:-0x7100000}"
 sp3_addr="${sp3_addr:-0x7200000}"
+sp4_addr="${sp4_addr:-0x7600000}"
 # SPM out directories
 export spm_secure_out_dir="${spm_secure_out_dir:-secure_aem_v8a_fvp_clang}"
 export spm_non_secure_out_dir="${spm_non_secure_out_dir:-aem_v8a_fvp_clang}"