pinctrl: starfive: Add missing header(s)

Do not imply that some of the generic headers may be always included.
Instead, include explicitly what we are direct user of.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>

drivers/pinctrl/starfive/pinctrl-starfive-jh7100.c

@@ -15,8 +15,11 @@
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/reset.h>
+#include <linux/seq_file.h>
 #include <linux/spinlock.h>
 
+#include <linux/pinctrl/consumer.h>
+#include <linux/pinctrl/pinconf.h>
 #include <linux/pinctrl/pinctrl.h>
 #include <linux/pinctrl/pinmux.h>