Use aom_reader with laplace_decode_special().

Change the laplace_decode_special() function to take an aom_reader
 struct instead of an od_ec_dec struct.
Rename laplace_decode_special() to aom_laplace_decode_special().

Change-Id: I137ae9a4df3fb0fd0b54dea09f787f70a7d287f5
4 files changed