Re: [sr-dev] [kamailio/kamailio] several compilation warnings: parameter may be used uninitialized and other (#2169)

**t_suspend.c & sip_msg.h** ``` CC (gcc) [M tm.so] t_fwd.o CC (gcc) [M tm.so] timer.o CC (gcc) [M tm.so] select.o CC (gcc) [M tm.so] t_suspend.o t_suspend.c: In function 't_continue_helper': t_suspend.c:526:16: warning: 'erpl' may be used uninitialized in this function [-Wmaybe-uninitialized] 526 | (void*)hdr>=(void*)erpl)) { | ~~~~~~~~~~^~~~~~~~~~~~~ In file included from t_suspend.c:29: sip_msg.h:69:15: warning: 'brpl' may be used uninitialized in this function [-Wmaybe-uninitialized] 69 | if((_p_msg)->add_rm) \ | ^~ t_suspend.c:168:13: note: 'brpl' was declared here 168 | sip_msg_t *brpl; | ^~~~ CC (gcc) [M tm.so] t_serial.o CC (gcc) [M tm.so] t_stats.o CC (gcc) [M tm.so] rpc_uac.o ```