This commit fixes several warnings like this one:
In file included from ../../../src/libsmpp34/test_apps/smpp.c:40:
test_apps/smpp.c: In function ‘do_smpp_send_message2’:
test_apps/esme.h:32:16: warning: implicit declaration of function ‘strtol’;
did you mean ‘strtok’? [-Wimplicit-function-declaration]
32 | dst = strtol((char*)clave, NULL, 10);\
| ^~~~~~
test_apps/smpp.c:223:5: note: in expansion of macro ‘GET_PROP_INT’
223 | GET_PROP_INT( req.source_addr_ton, p, "source_addr_ton" );
| ^~~~~~~~~~~~
Change-Id: I16d9e0171d4c26f721c300e22c78b77f6db4895c