A SPARC build fails with:
Undefined                       first referenced

 symbol                             in file

smbsrv_pcap_dump                    dmod/smbsrv.o

smbsrv_pcap_open                    dmod/smbsrv.o

smbsrv_pcap_close                   dmod/smbsrv.o

ld: fatal: symbol referencing errors. No output written to dmod/libfksmbsrv.so
We need to update
usr/src/cmd/mdb/sparc/v7/libfksmbsrv/Makefile
and
usr/src/cmd/mdb/sparc/v9/libfksmbsrv/Makefile
to add smbsrv_pcap.c to MODSRCS, the same way the intel Makefiles were updated in #10962

Build no longer has the error after the fix.