fix(tc): define status to fix SPM tests

The failure was caused by missing a variable definition, `status`
in the RSE initialisation patch.

Change-Id: I937a39e20fae39f3a6d14fe66af578c166545301
Signed-off-by: Icen.Zeyada <Icen.Zeyada2@arm.com>
diff --git a/plat/arm/board/tc/tc_bl31_setup.c b/plat/arm/board/tc/tc_bl31_setup.c
index 3fb0214..0afc73b 100644
--- a/plat/arm/board/tc/tc_bl31_setup.c
+++ b/plat/arm/board/tc/tc_bl31_setup.c
@@ -190,6 +190,8 @@
 #if defined(SPD_spmd) && (SPMC_AT_EL3 == 0)
 void tc_bl31_plat_runtime_setup(void)
 {
+	psa_status_t status;
+
 	/* Start secure watchdog timer. */
 	plat_arm_secure_wdt_start();