mac80211: fix autoprobing of mt7601u driver

mac80211: fix autoprobing of mt7601u driver

Strigng passed to autoprobing script should match
module's name. Currently that string is missing trailing "u".

With that change mt7601u driver really gets autoloaded on
USB Wi-Fi dongle insertion:
------------------>8---------------
[    0.930000] hub 2-0:1.0: USB hub found
[    0.940000] hub 2-0:1.0: 1 port detected
[    1.150000] usb 1-1: new high-speed USB device number 2 using
ehci-platform
[    1.720000] init: - preinit -
Detected arc-sdp // Synopsys AXS101 Development Board
[    1.810000] random: mktemp urandom read with 3 bits of entropy
available
Press the [f] key and hit [enter] to enter failsafe mode
Press the [1], [2], [3] or [4] key and hit [enter] to select the debug
level
[    4.940000] procd: - early -
[    5.540000] procd: - ubus -
[    6.550000] procd: - init -
Please press Enter to activate this console.
[    7.160000] Loading modules backported from Linux version
master-2015-10-26-0-g28c26cb
[    7.170000] Backport generated by backports.git
backports-20150903-4-g12cf266
[    7.200000] cfg80211: World regulatory domain updated:
[    7.230000] cfg80211:  DFS Master region: unset
[    7.230000] cfg80211:   (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp), (dfs_cac_time)
[    7.250000] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz),
(N/A, 2000 mBm), (N/A)
[    7.270000] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz),
(N/A, 2000 mBm), (N/A)
[    7.270000] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz),
(N/A, 2000 mBm), (N/A)
[    7.290000] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz,
160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[    7.290000] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz,
160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[    7.310000] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz),
(N/A, 2000 mBm), (0 s)
[    7.310000] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz),
(N/A, 2000 mBm), (N/A)
[    7.330000] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz),
(N/A, 0 mBm), (N/A)
[    7.470000] usb 1-1: reset high-speed USB device number 2 using
ehci-platform
[    7.620000] mt7601u 1-1:1.0: ASIC revision: 76010001 MAC revision:
76010500
[    7.630000] mt7601u 1-1:1.0: Firmware Version: 0.1.00 Build: 7640
Build time: 201302052146____
[    8.040000] mt7601u 1-1:1.0: Warning: unsupported EEPROM version 0d
[    8.050000] mt7601u 1-1:1.0: EEPROM ver:0d fae:00
[    8.050000] mt7601u 1-1:1.0: EEPROM country region 01 (channels 1-13)
[    8.320000] usbcore: registered new interface driver mt7601u
------------------>8---------------

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Dirk Neukirchen <dirkneukirchen@web.de>
Cc: Felix Fietkau <nbd@openwrt.org>
Cc: John Crispin <blogic@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@47556 3c298f89-4303-0410-b956-a3cf2f4a3e73