pinctrl: exynos5440/samsung: Staticize pcfgs

I got below build error with random config if CONFIG_PINCTRL_SAMSUNG=y &&
CONFIG_PINCTRL_EXYNOS5440=y.

Fix the build error by making pcfgs static.

  LD      drivers/pinctrl/built-in.o
drivers/pinctrl/pinctrl-exynos5440.o: In function `.LANCHOR0':
pinctrl-exynos5440.c:(.data+0x54): multiple definition of `pcfgs'
drivers/pinctrl/pinctrl-samsung.o:pinctrl-samsung.c:(.data+0x54): first defined here
make[2]: *** [drivers/pinctrl/built-in.o] Error 1
make[1]: *** [drivers/pinctrl] Error 2
make: *** [drivers] Error 2
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

drivers/pinctrl/pinctrl-exynos5440.c

@@ -117,7 +117,7 @@ struct exynos5440_pinctrl_priv_data {
 };
 
 /* list of all possible config options supported */
-struct pin_config {
+static struct pin_config {
 	char		*prop_cfg;
 	unsigned int	cfg_type;
 } pcfgs[] = {

drivers/pinctrl/pinctrl-samsung.c

@@ -37,7 +37,7 @@
 #define FSUFFIX_LEN		sizeof(FUNCTION_SUFFIX)
 
 /* list of all possible config options supported */
-struct pin_config {
+static struct pin_config {
 	char		*prop_cfg;
 	unsigned int	cfg_type;
 } pcfgs[] = {