AllJoyn: fix warning: no previous prototype for 'add_padding_item' [-Wmissing-prototypes]

Change-Id: Id18ac125390efa22638845083f7d0d5eaf71cb97
Reviewed-on: https://code.wireshark.org/review/4955
Reviewed-by: Evan Huus <eapache@gmail.com>
Couchbase: fix no previous prototype for ... [-Wmissing-prototypes]

Change-Id: Ieaefb9d50bf0224f4e90585d138867d0b88d5814
Reviewed-on: https://code.wireshark.org/review/4956
Reviewed-by: Evan Huus <eapache@gmail.com>