Parser: fix reading it->extra on big endian when bytesNeeded == 1
Parser: fix reading it->extra on big endian when bytesNeeded == 1

Signed-off-by: Dmitry Shachnev <cb726a07c9c7164c638f53d7db6ab94c3df9f2f5@gmail.com>

thiagomacieira/tinycbor,thiagomacieira/tinycbor,thiagomacieira/tinycbor,thiagomacieira/tinycbor