fix(app/common/el0_app): suppress coverity errors

Change-Id: Ic8ec64b70bcbd90f855fb5558941e54754a35eda
Signed-off-by: Mate Toth-Pal <mate.toth-pal@arm.com>
diff --git a/app/common/el0_app/include/el0_app_helpers.h b/app/common/el0_app/include/el0_app_helpers.h
index 8d3a21d..5b05136 100644
--- a/app/common/el0_app/include/el0_app_helpers.h
+++ b/app/common/el0_app/include/el0_app_helpers.h
@@ -17,8 +17,10 @@
  *
  * The function returns the start address to a buffer_alloc_ctx object.
  */
+/* coverity[misra_c_2012_rule_5_8_violation:SUPPRESS] */
 void *mbedtls_app_get_heap(void);
 
+/* coverity[misra_c_2012_rule_5_8_violation:SUPPRESS] */
 unsigned long el0_app_entry_func(
 	unsigned long func_id,
 	unsigned long arg_0,