Do not depend on rfkill

With kernel 2.6.31 cfg80211 is build with rfkill if it was build.

SVN-Revision: 17754

package/mac80211/patches/012-remove_rfkill.patch

@@ -0,0 +1,33 @@
+--- a/drivers/net/wireless/ath/ath5k/base.h
++++ b/drivers/net/wireless/ath/ath5k/base.h
+@@ -46,7 +46,7 @@
+ #include <linux/wireless.h>
+ #include <linux/if_ether.h>
+ #include <linux/leds.h>
+-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31))
++#if 0
+ #include <linux/rfkill.h>
+ #else
+ #include <linux/rfkill_backport.h>
+--- a/net/wireless/core.h
++++ b/net/wireless/core.h
+@@ -11,7 +11,7 @@
+ #include <linux/kref.h>
+ #include <linux/rbtree.h>
+ #include <linux/debugfs.h>
+-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31))
++#if 0
+ #include <linux/rfkill.h>
+ #else
+ #include <linux/rfkill_backport.h>
+--- a/include/linux/rfkill_backport.h
++++ b/include/linux/rfkill_backport.h
+@@ -149,7 +149,7 @@ struct rfkill_ops {
+ 	int	(*set_block)(void *data, bool blocked);
+ };
+ 
+-#if defined(CONFIG_RFKILL_BACKPORT) || defined(CONFIG_RFKILL_MODULE_BACKPORT)
++#if 0
+ /**
+  * rfkill_alloc - allocate rfkill structure
+  * @name: name of the struct -- the string is not copied internally