ANDROID: GKI: Update symbol list for arg

These symbols are missing from the symbol list and are not available at runtime for unsigned modules:
  iio_get_channel_type

Bug: 386822958
Bug: 395137525
Signed-off-by: Rishi Sikka <rishisikka@google.com>
(cherry picked from https://android-review.googlesource.com/q/commit:1ac09f5c057146455dc10fccd52a8f5f34039fb0)
Merged-In: I188d191a5a23451f155584e86d66ae56c235ad64
Change-Id: I188d191a5a23451f155584e86d66ae56c235ad64