MFH: r551733

lang/php74: Add missing dependency from php74-xmlreader to php74-dom

xmlreader needs not only the DOM extension, but to be compiled
with --enabled-dom. This commit adds the missing configuration
to etablish the dependency.

PR: 249886
Submitted by: michael.glaus@hostpoint.ch
Sponsored by: Bounce Experts

Approved by: ports-secteam (joneum, implicit for PHP Updates)