mtwifi: mt7615: fix multi-profile merge (#5622)

* mtwifi: mt7615: fix multi-profile merge

Currently some settings like AutoChannelSelect, CountryRegion(ABand),
HT_BW/VHT_BW are not respected. This is due to wrong multi-profile
merging when l1profile.dat is not consistent with compiling flag
DEFAULT_5G_PROFILE.

5g profile should be put before 2g profile when DEFAULT_5G_PROFILE is
set.

References:
- https://github.com/coolsnowwolf/lede/blob/099439f051a8b2393554eb26cec2df074f653fae/package/lean/mt/drivers/mt7615d/Makefile#L52
- https://github.com/coolsnowwolf/lede/blob/099439f051a8b2393554eb26cec2df074f653fae/package/lean/mt/drivers/mt7615d/src/mt_wifi/os/linux/rt_profile.c#L211

* mtwifi: mt7615: fix reload

package/lean/mt/drivers/mt_wifi/files/dbdc.l1profile.dat

 Default
 INDEX0=MT7615
-INDEX0_profile_path=/etc/wireless/mt7615/mt7615.1.2G.dat;/etc/wireless/mt7615/mt7615.1.5G.dat
+INDEX0_profile_path=/etc/wireless/mt7615/mt7615.1.5G.dat;/etc/wireless/mt7615/mt7615.1.2G.dat
 INDEX0_EEPROM_offset=0x0
 INDEX0_EEPROM_size=0x4000
 INDEX0_EEPROM_name=e2p
-INDEX0_main_ifname=rax0;ra0
-INDEX0_ext_ifname=rax;ra
-INDEX0_wds_ifname=wdsx;wds
-INDEX0_apcli_ifname=apclix;apcli
+INDEX0_main_ifname=ra0;rax0
+INDEX0_ext_ifname=ra;rax
+INDEX0_wds_ifname=wds;wdsx
+INDEX0_apcli_ifname=apcli;apclix
 INDEX0_single_sku_path=/etc_ro/Wireless/SingleSKU_mt7615e-sku.dat
 INDEX0_bf_sku_path=/etc_ro/Wireless/SingleSKU_mt7615e-sku-bf.dat

package/lean/mt/drivers/mt_wifi/files/mt7615.lua

@@ -176,8 +176,8 @@ function mt7615_restart(devname)
     local nixio = require("nixio")
     nixio.syslog("debug", "mt7615_restart called!")
     mt7615_down(devname)
-    os.execute("rmmod mt7615")
-    os.execute("modprobe mt7615")
+    os.execute("rmmod mt_wifi")
+    os.execute("modprobe mt_wifi")
     mt7615_up(devname)
 end