ANDROID: GKI: Update symbol list for mtk

3 function symbol(s) added
  'int __bitmap_subset(const unsigned long int *, const unsigned long int *, unsigned int)'
  'unsigned int _bcd2bin(unsigned char)'
  'unsigned char _bin2bcd(unsigned int)'

Bug: 278138288
Bug: 282843714
Signed-off-by: Seiya Wang <seiya.wang@mediatek.com>
Change-Id: I60af2c89defb28a3d4f8daf4fba9f7dc22ec8a8a
(cherry picked from commit e269893a)