soc/amd/pi/amd_late_init.c: Fix implicit enum conversion

This fixes building with clang.

Change-Id: Ifda9be8996703b06fe9ee30ffb5f56a91629e065
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63053
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
diff --git a/src/soc/amd/common/pi/amd_late_init.c b/src/soc/amd/common/pi/amd_late_init.c
index 4d2250b..ea16576 100644
--- a/src/soc/amd/common/pi/amd_late_init.c
+++ b/src/soc/amd/common/pi/amd_late_init.c
@@ -36,8 +36,9 @@
 
 	dimm->rank_per_dimm = dmi17->Attributes;
 
-	dimm->mod_type = smbios_form_factor_to_spd_mod_type(dmi17->MemoryType,
-						dmi17->FormFactor);
+	dimm->mod_type = smbios_form_factor_to_spd_mod_type(
+		(smbios_memory_type)dmi17->MemoryType,
+		(smbios_memory_form_factor)dmi17->FormFactor);
 
 	dimm->bus_width = smbios_bus_width_to_spd_width(dmi17->MemoryType, dmi17->TotalWidth,
 						dmi17->DataWidth);