ath9k: disable btcoex again after it got re-enabled by the update

SVN-Revision: 30765

package/mac80211/patches/023-ath9k_disable_btcoex.patch

@@ -0,0 +1,11 @@
+--- a/config.mk
++++ b/config.mk
+@@ -268,7 +268,7 @@ CONFIG_ATH9K_COMMON=m
+ # for long range considerations.
+ # CONFIG_ATH9K_RATE_CONTROL=y
+ 
+-CONFIG_ATH9K_BTCOEX_SUPPORT=y
++# CONFIG_ATH9K_BTCOEX_SUPPORT=y
+ 
+ # PCI Drivers
+ ifdef CONFIG_PCI