cfgfile: replace strcat with strlcat
cfgfile: replace strcat with strlcat

Replace strcat with strlcat to avoid buffer overflow.

Fixes: a6a47ac9c2 ("cfgfile: rework load function")
Cc: stable@dpdk.org

Signed-off-by: Chaitanya Babu Talluri <52c33c15326506c7c5375c3dfd482ecd9fa3a734@intel.com>
Acked-by: Ferruh Yigit <ba8734c3c506d2e3557bd4ac8fdaccd25bdb9aa7@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk