BUG/MEDIUM: pattern: "pat_parse_dotted_ver()" set bad expect_type.

This is a regression introducted by the patches "MINOR: pattern: Each
pattern sets the expected input type" and "MEDIUM: acl: Last patch
change the output type". The expected value is SMP_T_CSTR in place of
SMP_T_UINT.

This bug impact all the acl using the parser "pat_parse_dotted_ver()".
The two acl are "req_ssl_ver()" and "req.ssl_ver()".

This is a recent bug, no backport is needed.