mac80211: update to version 6.12.6

- drop patches accepted upstream
- include build fixes in the tarball
- based on https://github.com/nbd168/backports commit 410656ef04d2

Signed-off-by: Felix Fietkau <nbd@nbd.name>

package/kernel/mac80211/Makefile

@@ -10,13 +10,13 @@ include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=mac80211
 
-PKG_VERSION:=6.11.2
+PKG_VERSION:=6.12.6
 PKG_RELEASE:=1
 PKG_LICENSE:=GPL-2.0-only
 PKG_LICENSE_FILES:=COPYING
 
 PKG_SOURCE_URL:=http://mirror2.openwrt.org/sources/
-PKG_HASH:=700ea5abef8dde9e3c6df2acd32ff443da735d773d56db9a80269e2237549b34
+PKG_HASH:=28ec39425a1b3270e1422d92a8131a6a3d8919cc13e8ee250c315e55d922ba68
 
 PKG_SOURCE:=backports-$(PKG_VERSION).tar.xz
 PKG_BUILD_DIR:=$(KERNEL_BUILD_DIR)/$(if $(BUILD_VARIANT),$(PKG_NAME)-$(BUILD_VARIANT)/)backports-$(PKG_VERSION)