MT6885/MT6873/MT6853 设置电池默认温度值

tangh

项目前期，可能battery没有ready，会报battery thermal关机，导致手机开不起来。
[sys.powerctl]=[shutdown,thermal,battery]

参考如下临时patch，将battery温度固定在25度。

1. diff --git a/drivers/power/supply/mediatek/battery/mtk_battery.c b/drivers/power/supply/mediatek/battery/mtk_battery.c
   
2. index da936706e868..2168681acfb4 100644
   
3. --- a/drivers/power/supply/mediatek/battery/mtk_battery.c
   
4. +++ b/drivers/power/supply/mediatek/battery/mtk_battery.c
   
5. @@ -1472,6 +1472,7 @@ int force_get_tbat_internal(bool update)
   
6. static struct timespec pre_time;
   
7. struct timespec ctime, dtime;
   
8. 
   
9. + gm.fixed_bat_tmp = 25;
   
10. if (is_battery_init_done() == false) {
    
11. gm.tbat_precise = 250;
    
12. return 25;

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