[kernel] add a workaround on kmod-textsearch modules (#4832)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15047 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/generic-2.6/patches-2.6.27/977-textsearch_kconfig_hacks.patch

+--- a/lib/Kconfig	2009-03-23 23:04:09.000000000 +0100
++++ b/lib/Kconfig	2009-03-26 12:43:09.000000000 +0100
+@@ -122,13 +122,13 @@
+ 	boolean
+ 
+ config TEXTSEARCH_KMP
+-	tristate
++	tristate "Textsearch KMP"
+ 
+ config TEXTSEARCH_BM
+-	tristate
++	tristate "Textsearch BM"
+ 
+ config TEXTSEARCH_FSM
+-	tristate
++	tristate "Textsearch FSM"
+ 
+ #
+ # plist support is select#ed if needed