s3/libsmd: clang: Fix some uninitialized value errors

s3/libsmd: clang: Fix some uninitialized value errors

Fixes:

source3/libsmb/clilist.c:534:14: warning: 1st function call argument is an uninitialized value <--[clang]
        num_finfo = talloc_array_length(finfo);
                    ^
source3/libsmb/clilist.c:1007:13: warning: The right operand of '<' is a garbage value <--[clang]
        for (i=0; i<num_finfo; i++) {
                   ^~~~~~~~~~
2 warnings generated.

Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Ralph Boehme <slow@samba.org>