device/pnp: Add header files for PNP ops

Change-Id: Ifda495420cfb121ad32920bb9f1cbdeef41f6d3a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31698
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/roda/rk886ex/romstage.c b/src/mainboard/roda/rk886ex/romstage.c
index 9492ca1..b36d78b 100644
--- a/src/mainboard/roda/rk886ex/romstage.c
+++ b/src/mainboard/roda/rk886ex/romstage.c
@@ -19,6 +19,7 @@
 #include <stdint.h>
 #include <string.h>
 #include <arch/io.h>
+#include <device/pnp_ops.h>
 #include <device/pci_ops.h>
 #include <device/pci_def.h>
 #include <cpu/x86/lapic.h>