Revert "device.mk: Fix lines"

This reverts commit 07d9f8cce8c834bf39a04e389f233e76de5363df.
Revert "Both F2FS, EXT4 Support"

This reverts commit 0da3347632fdc3c58493861c0b52b365462c63d4.
Both F2FS, EXT4 Support Method_2