coverity: Improve source file coverage using new build features

This patch also updates the path to scmi power_domain driver that is
currently excluded from coverity analysis.

Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
Change-Id: I9ad4a0eaaba3dec141a0da37ac72d43333738105
diff --git a/script/tf-coverity/coverity_tf_conf.py b/script/tf-coverity/coverity_tf_conf.py
index f110ed9..66e1de9 100644
--- a/script/tf-coverity/coverity_tf_conf.py
+++ b/script/tf-coverity/coverity_tf_conf.py
@@ -25,7 +25,7 @@
     ("drivers/renesas/rzg/ddr/ddr_b/boot_init_dram_config.c",
      "It is used as a header file and is included in boot_init_dram.c .Since it is not explicitly compiled, such file cannot be converted into an instrumented binary for further analysis"),
     ("drivers/auth/cryptocell/713/.*", "There is no dummy library to support 713 for now. This can be removed once we have this library in place"),
-    ("drivers/st/scmi-msg/.*", "Not used by any upstream platform"),
+    ("drivers/scmi-msg/power_domain.c", "Not used by any upstream platform"),
 
     ("plat/arm/board/fvp/fconf/fconf_nt_config_getter.c", "Not currently used. Future functionality"),
     ("plat/marvell/armada/a8k/common/plat_bl1_setup.c", "Not used by any upstream marvell platform"),