fix(material/radio): clicks not propagating to wrapper elements (#24459)
fix(material/radio): clicks not propagating to wrapper elements (#24459)

Fixes a regression caused by #19505 where clicking directly on the `input` element will prevent the click from reaching custom `click` listeners outside the radio button.
crisbeto/material2,crisbeto/material2,angular/components,crisbeto/material2,crisbeto/material2,angular/components,angular/components,angular/components