77平台，将WIFI改成6620的，开机不断重启，LOG如下

77平台，将WIFI改成6620的，开机不断重启，LOG如下：
[    3.137314] (0)[1:init][WMT-DEV][E]wmt_dev_patch_get(838):load file (/system/etc/firmware/WMT.cfg) fail, iRet(-1)
[    3.138700] (0)[1:init][WMT-CONF][E]wmt_conf_read_file(483):read wmt.cfg file fails
[    3.139651] (0)[1:init]/home/derek/resource_mgr/project_src_base/hexing77/3rd_base_version/alps/kernel/mediatek/kernel/drivers/combo/common/core/wmt_conf.c, 484, (0)
[    3.141494] (0)[1:init][WMT-LIB][E]wmt_lib_init(173):read wmt config file fail(-1)
[    3.142436] (0)[1:init][WMT-DEV][E]WMT_init(1625):wmt_lib_init() fails (-1)
[    3.143316] (0)[1:init][WMT-LIB][E]wmt_lib_deinit(296)sal_thread_stop(0xbf1536dc) fail(-1)
[    3.144367] (0)[1:init][WMT-CMB-HW][W]mtk_wcn_cmb_hw_deinit:mtk_wcn_cmb_hw_deinit start, set to default hw init sequence parameters
[    3.145854] (0)[1:init][WMT-CMB-HW][W]mtk_wcn_cmb_hw_deinit:mtk_wcn_cmb_hw_deinit finish20
[    3.146877] (0)[1:init]Unable to handle kernel NULL pointer dereference at virtual address 00000004
[    3.147997] (0)[1:init]pgd = dd570000
[    3.148453] (0)[1:init][00000004] *pgd=1eb52831, *pte=00000000, *ppte=00000000
[    3.149358] (0)[1:init]Internal error: Oops: 817 [#1] PREEMPT SMP ARM
[    3.150157] (0)[1:init]Modules linked in: mtk_stp_wmt bf12b000 (+) mtk_hif_sdio bf121000