wl12xx: remove unused crc7 references

crc7 is used only in wl12xx_spi.

Remove redundant crc7.h includes, and update Kconfig to select CRC7
only if WL12XX_SPI is being selected.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

drivers/net/wireless/wl12xx/Kconfig

@@ -11,7 +11,6 @@ config WL12XX
 	depends on WL12XX_MENU && GENERIC_HARDIRQS
 	depends on INET
 	select FW_LOADER
-	select CRC7
 	---help---
 	  This module adds support for wireless adapters based on TI wl1271 and
 	  TI wl1273 chipsets. This module does *not* include support for wl1251.
@@ -33,6 +32,7 @@ config WL12XX_HT
 config WL12XX_SPI
 	tristate "TI wl12xx SPI support"
 	depends on WL12XX && SPI_MASTER
+	select CRC7
 	---help---
 	  This module adds support for the SPI interface of adapters using
 	  TI wl12xx chipsets.  Select this if your platform is using

drivers/net/wireless/wl12xx/acx.c

@@ -25,7 +25,6 @@
 
 #include <linux/module.h>
 #include <linux/platform_device.h>
-#include <linux/crc7.h>
 #include <linux/spi/spi.h>
 #include <linux/slab.h>
 

drivers/net/wireless/wl12xx/cmd.c

@@ -23,7 +23,6 @@
 
 #include <linux/module.h>
 #include <linux/platform_device.h>
-#include <linux/crc7.h>
 #include <linux/spi/spi.h>
 #include <linux/etherdevice.h>
 #include <linux/ieee80211.h>

drivers/net/wireless/wl12xx/io.c

@@ -23,7 +23,6 @@
 
 #include <linux/module.h>
 #include <linux/platform_device.h>
-#include <linux/crc7.h>
 #include <linux/spi/spi.h>
 
 #include "wl12xx.h"

drivers/net/wireless/wl12xx/sdio.c

@@ -23,7 +23,6 @@
 
 #include <linux/irq.h>
 #include <linux/module.h>
-#include <linux/crc7.h>
 #include <linux/vmalloc.h>
 #include <linux/mmc/sdio_func.h>
 #include <linux/mmc/sdio_ids.h>