p9221_charger: clear data type buffer before entering HPP mode

P9412 will have a random garbage data in SRAM if 0x800 is 0x80,
this will cause proprietary mode fail to enable

Bug: 214421252
Signed-off-by: yihsiangpeng <[email protected]>
Change-Id: I8a3737aaa6a07d2acfd9f5d547ca24a915ad5425
1 file changed