ANDROID: GKI: Update symbol list for Amlogic

4 function symbol(s) added
  'void relay_close(struct rchan *)'
  'void relay_flush(struct rchan *)'
  'struct rchan * relay_open(const char *, struct dentry *, size_t, size_t, const struct rchan_callbacks *, void *)'
  'size_t relay_switch_subbuf(struct rchan_buf *, size_t)'

1 variable symbol(s) added
  'const struct file_operations relay_file_operations'

Bug: 293967036
Change-Id: I18d8d7f1e632ec435e880238678ca3bdd1fe752a
Signed-off-by: Wanwei Jiang <wanwei.jiang@amlogic.com>