fix(build): move `SMC_PCI_SUPPORT` flag management to Makefile

The flag SMC_PCI_SUPPORT is set to 0 in make_helpers/defaults.mk. It can
then be defined in Makefile.
This will avoid warning for platforms not using SMC_PCI_SUPPORT with
-Wundef.

Change-Id: I142fd03ce3f01d098a2af93f63e7a3c322c71bdd
Signed-off-by: Yann Gautier <yann.gautier@st.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index 9f31f577d..0d092368c 100644
--- a/Makefile
+++ b/Makefile
@@ -654,6 +654,7 @@ $(eval $(call assert_booleans,\
 	SUPPORT_SP_LIVE_ACTIVATION \
 	TEST_IO_SHORT_READ_FI \
 	SDEI_SUPPORT \
+	SMC_PCI_SUPPORT \
 )))
 
 # Numeric_Flags
@@ -940,6 +941,7 @@ $(eval $(call add_defines,\
 	TEST_IO_SHORT_READ_FI_IMAGE_ID \
 	SDEI_SUPPORT \
 	USE_GIC_DRIVER \
+	SMC_PCI_SUPPORT \
 )))
 
 ifeq (${PLATFORM_REPORT_CTX_MEM_USE}, 1)