partially revert "mwlwifi: switch to AutoProbe"

Apearently we need to ensure mwlwifi loads before mwifiex on
the WRT3200ACM, else mwifiex will claim the wifi.

Fix this by reverting to AutoLoad, but keep the removal of
mac80211 line.

This partially reverts commit 471d5dc6e3.

Fixes: 471d5dc6e3 ("mwlwifi: switch to AutoProbe")
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>

package/kernel/mwlwifi/Makefile

@@ -30,7 +30,7 @@ define KernelPackage/mwlwifi
   TITLE:=Marvell 88W8864 wireless driver
   DEPENDS:=+kmod-mac80211 +@DRIVER_11N_SUPPORT +@DRIVER_11AC_SUPPORT +@DRIVER_11W_SUPPORT @PCI_SUPPORT @TARGET_mvebu
   FILES:=$(PKG_BUILD_DIR)/mwlwifi.ko
-  AUTOLOAD:=$(call AutoProbe,mwlwifi)
+  AUTOLOAD:=$(call AutoLoad,50,mwlwifi)
 endef
 
 NOSTDINC_FLAGS = \