REGTESTS: startup: disable automatic_maxconn.vtc

The test still need to have more start condition, like ulimit checks
and less strict value checks.

To be backported where it was activated (as far as 2.5)

reg-tests/startup/automatic_maxconn.vtc

@@ -3,7 +3,7 @@ feature cmd "$HAPROXY_PROGRAM -cc 'version_atleast(2.5-dev0)'"
 feature cmd "$HAPROXY_PROGRAM -cc '!feature(OBSOLETE_LINKER)'"
 feature cmd "$HAPROXY_PROGRAM -cc 'feature(OPENSSL)'"
 feature ignore_unknown_macro
-#REGTEST_TYPE=devel
+#REGTEST_TYPE=broken
 
 
 # Check the maxconn computation with the -m parameter