ANDROID: GKI: Update symbol list for mtk

6 function symbol(s) added
  'struct config_item* config_group_find_item(struct config_group*, const char*)'
  'int usb_function_activate(struct usb_function*)'
  'int usb_function_deactivate(struct usb_function*)'
  'int usb_gadget_frame_number(struct usb_gadget*)'
  'const struct uvc_format_desc* uvc_format_by_guid(const u8*)'
  'void v4l2_simplify_fraction(u32*, u32*, unsigned int, unsigned int)'

Bug: 397526098
Bug: 398754601
Signed-off-by: Seiya Wang <seiya.wang@mediatek.com>
Change-Id: Ia49ebfd566ebc0d408be6702d599fd39529bfd54
(cherry picked from commit a5fde818)