ANDROID: GKI: Update symbol list for mtk

2 function symbol(s) added
  'int alloc_contig_range(unsigned long start, unsigned long end, unsigned migratetype, gfp_t gfp_mask)'
  'void free_contig_range(unsigned long pfn, unsigned long nr_pages)'

Bug: 370415608
Bug: 370854989
Change-Id: I6ed58458b26364c07779d4b4f662444f14e9a146
Signed-off-by: Seiya Wang <seiya.wang@mediatek.com>
(cherry picked from commit 1cdc168f)