[PATCH] net: phy: spi_ks8995: add dependency on GPIO

The builds of allmodconfig of s390, m68k, tilegx, tilepro is failing
with the error:
 drivers/net/phy/spi_ks8995.c:477:3: error: implicit declaration of function 'gpiod_set_value'
 drivers/net/phy/spi_ks8995.c:477:19: error: implicit declaration of function 'gpio_to_desc'

GPIO is now used to reset the switch so we should have a dependency on
GPIOLIB. 

Fixes: cd6f288cbaab ("net: phy: spi_ks8995: add support for resetting switch using GPIO")
Cc: Helmut Buchsbaum <[email protected]>
Signed-off-by: Sudip Mukherjee <[email protected]>
---
 drivers/net/phy/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index f0a7702..c6a4fe1 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -261,4 +261,4 @@ endif # PHYLIB
 
 config MICREL_KS8995MA
 	tristate "Micrel KS8995MA 5-ports 10/100 managed Ethernet switch"
-	depends on SPI
+	depends on SPI && GPIOLIB
-- 
1.9.1