kernel: split patches folder up into backport, pending and hack folders

* properly format/comment all patches
* merge debloat patches
* merge Kconfig patches
* merge swconfig patches
* merge hotplug patches
* drop 200-fix_localversion.patch - upstream
* drop 222-arm_zimage_none.patch - unused
* drop 252-mv_cesa_depends.patch - no longer required
* drop 410-mtd-move-forward-declaration-of-struct-mtd_info.patch - unused
* drop 661-fq_codel_keep_dropped_stats.patch - outdated
* drop 702-phy_add_aneg_done_function.patch - upstream
* drop 840-rtc7301.patch - unused
* drop 841-rtc_pt7c4338.patch - upstream
* drop 921-use_preinit_as_init.patch - unused
* drop spio-gpio-old and gpio-mmc - unused

Signed-off-by: John Crispin <john@phrozen.org>

target/linux/generic/pending-3.18/255-lib80211_kconfig_hacks.patch

@@ -0,0 +1,31 @@
+--- a/net/wireless/Kconfig
++++ b/net/wireless/Kconfig
+@@ -183,7 +183,7 @@ config CFG80211_WEXT
+ 	  extensions with cfg80211-based drivers.
+ 
+ config LIB80211
+-	tristate
++	tristate "LIB80211"
+ 	default n
+ 	help
+ 	  This options enables a library of common routines used
+@@ -192,13 +192,16 @@ config LIB80211
+ 	  Drivers should select this themselves if needed.
+ 
+ config LIB80211_CRYPT_WEP
+-	tristate
++	tristate "LIB80211_CRYPT_WEP"
++	select LIB80211
+ 
+ config LIB80211_CRYPT_CCMP
+-	tristate
++	tristate "LIB80211_CRYPT_CCMP"
++	select LIB80211
+ 
+ config LIB80211_CRYPT_TKIP
+-	tristate
++	tristate "LIB80211_CRYPT_TKIP"
++	select LIB80211
+ 
+ config LIB80211_DEBUG
+ 	bool "lib80211 debugging messages"