overlay: Settings: Remove has_led_flash option

This is deprecated.
overlay: Add Mms overlay

*Double the maximum MMS message size
*Increase the maximum resolution for an attached image
Revert "BoardConfig: Update defconfig name"

This reverts commit deae8dc8dae4e09dbe284bedc52ce441e73063ec.
overlay: frameworks: base: Enable config_enableTorch

Fixes Torch icon not appearing in Quick Settings. Enable this flag as suggested in the Settings overlay.