cfg: fix spelling error in load module statement related to jsonrpcs

(cherry picked from commit 422f9ea87029716674972e4c387dfd362058ad49)

etc/kamailio-basic.cfg

@@ -146,7 +146,7 @@ mpath="/usr/local/lib/kamailio/modules/"
 loadmodule "db_mysql.so"
 #!endif
 
-loadmodule "jsonrpc.so"
+loadmodule "jsonrpcs.so"
 loadmodule "kex.so"
 loadmodule "corex.so"
 loadmodule "tm.so"