Revert "lantiq: fix 0208-lantiq-xrx200-strip-fcs.patch"

This reverts commit e42493672d4c8a7acd982ddfdc55398d85a5323b.
Revert "lantiq: replace 0208-lantiq-xrx200-strip-fcs.patch with devicetree option"

This reverts commit 69ea722f46849414aff34f6c320fb981e9639038.