pinctrl: sprd: Restrict PINCTRL_SPRD to ARCH_SPRD or COMPILE_TEST

The Spreadtrum pinctrl drivers are only useful when building for a
Spreadtrum platform.

Signed-off-by: Geert Uytterhoeven <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>

drivers/pinctrl/sprd/Kconfig

···
 
 config PINCTRL_SPRD
 	bool "Spreadtrum pinctrl driver"
+	depends on OF
+	depends on ARCH_SPRD || COMPILE_TEST
 	select PINMUX
 	select PINCONF
 	select GENERIC_PINCONF
 	select GENERIC_PINMUX_FUNCTIONS
-	depends on OF
 	help
 	  Say Y here to enable Spreadtrum pinctrl driver