smpp: fix return cause

Return cause 38 when default SMPP route is unavailable. This
is better than cause 1.

Change-Id: If3241d50a78fa611981e55fef6ae4c72b0a2a167
This commit is contained in:
Benoit Bolsee 2017-07-05 11:46:55 +02:00 committed by Neels Hofmeyr
parent 4c5a08937f
commit 66fc7561a1

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