[automated] Ran buildifier against all BUILD files. (#6077)
[automated] Ran buildifier against all BUILD files. (#6077)

Automated by running:

    find . -name BUILD | xargs buildifier
material-components/material-components-ios,material-components/material-components-ios,material-components/material-components-ios,material-components/material-components-ios,material-components/material-components-ios