BoardConfigCommon.mk: Change defconfig

Change-Id: Ib18317a41935ddafa53fd6c0b474c4c4cb2a0287
Revert "Add TWRP fstab"

This reverts commit e020dcaaee87dddb185622cad508222111eba932.
Revert "Add initial TWRP config"

This reverts commit 916fb19f92a051c4576aa1ea69123aaf576bb196.
fstab: Enable f2fs support

Change-Id: Ic1c89c43c3de312b99352746c2e22e3291ad50b7