spi: rockchip_sfc: Add missing include for dm/device_compat.h

Add missing include for dm/device_compat.h. Without this include the
SFC driver fails to compile because dev_err and dev_dbg are not
defined.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/spi/rockchip_sfc.c b/drivers/spi/rockchip_sfc.c
index e098add..851a648 100644
--- a/drivers/spi/rockchip_sfc.c
+++ b/drivers/spi/rockchip_sfc.c
@@ -12,6 +12,7 @@
 #include <bouncebuf.h>
 #include <clk.h>
 #include <dm.h>
+#include <dm/device_compat.h>
 #include <linux/bitops.h>
 #include <linux/delay.h>
 #include <linux/iopoll.h>