Revert "ext4: prevent kernel panic in case of uninitialized jinode"

This reverts commit 739ed9c443dded1f27ace3916c1a58c6392cf91b.
Revert "enable usb otg"

This reverts commit 939250d04184b2da91cf763e4d3587c53fde3f1b.
Revert "mmc: disable crc for better performance"

This reverts commit 290fdccf0a28579591b1f7a8607a4ce8434d4690.
Revert "ARM: L1 cache optimization"

This reverts commit c58e31a67377a1e50507b71bb1b95cc3c25e0314.