bfin_gpio: fix bf548-ezkit kernel fail to boot

Fix bf548-ezkit kernel fail to boot when request peripheral pins.
Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>

arch/blackfin/kernel/bfin_gpio.c

@@ -66,10 +66,11 @@ static struct gpio_port_t * const gpio_array[] = {
 	(struct gpio_port_t *)PORTE_FER,
 	(struct gpio_port_t *)PORTF_FER,
 	(struct gpio_port_t *)PORTG_FER,
-#elif defined(CONFIG_BF54x) 
+# if defined(CONFIG_BF54x)
 	(struct gpio_port_t *)PORTH_FER,
 	(struct gpio_port_t *)PORTI_FER,
 	(struct gpio_port_t *)PORTJ_FER,
+# endif
 #else
 # error no gpio arrays defined
 #endif