Move `setIsDreaming(..);` to be right after `plugin.getView(parent);`.

This is necessary because registerDataProvider(plugin) could already be
logging events. The logged surface is 2 (Keyguard) without the
`setIsDreaming(true)`.

Bug: 227613246
Bug: 231251252
Test: on device via `adb logcat | grep SMARTSPACE_CARD_RECEIVED`
Change-Id: Id792bde00b66fd51b6a8606f7f6480718f64a22a