pinctrl: berlin: add explicit dependency on OF

Berlin pinctrl drivers depends on CONFIG_OF. This patch adds
this dependency explicitly.

Signed-off-by: Antoine Tenart <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>

drivers/pinctrl/berlin/Kconfig

···
 
 config PINCTRL_BERLIN_BG2
 	def_bool MACH_BERLIN_BG2
+	depends on OF
 	select PINCTRL_BERLIN
 
 config PINCTRL_BERLIN_BG2CD
 	def_bool MACH_BERLIN_BG2CD
+	depends on OF
 	select PINCTRL_BERLIN
 
 config PINCTRL_BERLIN_BG2Q
 	def_bool MACH_BERLIN_BG2Q
+	depends on OF
 	select PINCTRL_BERLIN
 
 config PINCTRL_BERLIN_BG4CT