soc/amd/picasso/fch: add missing iomap.h include

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Iea9666fe4f61fb503fee4060a90ec75e2d70c24f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50260
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

src/soc/amd/picasso/fch.c

@@ -17,6 +17,7 @@
 #include <soc/acpi.h>
 #include <soc/cpu.h>
 #include <soc/i2c.h>
+#include <soc/iomap.h>
 #include <soc/southbridge.h>
 #include <soc/smi.h>
 #include <soc/amd_pci_int_defs.h>