superio/fintek/f71805f: Avoid .c includes

Following the same reasoning as commit
d304331 superio/fintek/f81865f: Avoid .c includes
Clean up the early_serial #include directives in mainboard/romstage code.

Change-Id: Ibf743f7a5dd4a424a4513014fc9a896b87ecf3b1
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5434
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>

src/mainboard/jetway/j7f2/romstage.c

@@ -31,7 +31,7 @@
 #include "drivers/pc80/udelay_io.c"
 #include "lib/delay.c"
 #include "southbridge/via/vt8237r/early_smbus.c"
-#include "superio/fintek/f71805f/early_serial.c"
+#include <superio/fintek/f71805f/f71805f.h>
 #include <lib.h>
 #include <spd.h>
 

src/superio/fintek/f71805f/Makefile.inc

@@ -18,5 +18,5 @@
 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 ##
 
+romstage-$(CONFIG_SUPERIO_FINTEK_F71805F) += early_serial.c
 ramstage-$(CONFIG_SUPERIO_FINTEK_F71805F) += superio.c
-

src/superio/fintek/f71805f/early_serial.c

@@ -21,6 +21,7 @@
 /* Pre-RAM driver for the Fintek F71805F/FG Super I/O chip. */
 
 #include <arch/io.h>
+#include <device/pnp.h>
 #include "f71805f.h"
 
 static void pnp_enter_conf_state(device_t dev)
@@ -36,7 +37,7 @@ static void pnp_exit_conf_state(device_t dev)
 	outb(0xaa, port);
 }
 
-static void f71805f_enable_serial(device_t dev, u16 iobase)
+void f71805f_enable_serial(device_t dev, u16 iobase)
 {
 	pnp_enter_conf_state(dev);
 	pnp_set_logical_device(dev);

src/superio/fintek/f71805f/f71805f.h

@@ -38,4 +38,6 @@
 #define	F71805F_GPIO	0x06	/* General Purpose I/O (GPIO) */
 #define	F71805F_PME	0x0a	/* Power Management Events (PME) */
 
-#endif
+void f71805f_enable_serial(device_t dev, u16 iobase);
+
+#endif /* SUPERIO_FINTEK_F71805F_F71805F_H */