gpio: Drop superfluous dependencies on GPIOLIB

All config options for GPIO drivers are inside a big "if GPIOLIB ...
endif" block, so there is no reason for individual config options to
have expicit dependencies on GPIOLIB.  Hence remove them.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

drivers/gpio/Kconfig

@@ -410,7 +410,7 @@ config GPIO_MXS
 
 config GPIO_OCTEON
 	tristate "Cavium OCTEON GPIO"
-	depends on GPIOLIB && CAVIUM_OCTEON_SOC
+	depends on CAVIUM_OCTEON_SOC
 	default y
 	help
 	  Say yes here to support the on-chip GPIO lines on the OCTEON
@@ -1117,7 +1117,7 @@ config GPIO_DLN2
 
 config HTC_EGPIO
 	bool "HTC EGPIO support"
-	depends on GPIOLIB && ARM
+	depends on ARM
 	help
 	  This driver supports the CPLD egpio chip present on
 	  several HTC phones.  It provides basic support for input