Replace no error code '0' for SMS with '-1'

Use '-1' for no error instead of '0' since the '0' has been one of the
valid error codes in 3GPP2.

Test: Manual

Change-Id: Iea619c8394b39c3f24a9786bad10d5f322438704
Signed-off-by: Taesu Lee <taesu82.lee@samsung.com>
2 files changed