ANDROID: GKI: Update symbol list for sunxi

4 function symbol(s) added
  'struct usb_request * alloc_ep_req(struct usb_ep *, size_t)'
  'int clk_hw_register_clkdev(struct clk_hw *, const char *, const char *)'
  'const char * kmsg_dump_reason_str(enum kmsg_dump_reason)'
  'const char * pstore_type_to_name(enum pstore_type_id)'

Bug: 315099504
Bug: 311522919
Signed-off-by: Aran Dalton <arda@allwinnertech.com>
(cherry picked from commit 9bbe05f3)
Change-Id: I027b665b24436273795ea82998d31c093d8760be