Revert "ARM: 7080/1: l2x0: make sure I&D are not locked down on init"

This reverts commit fccf376bc364b16cc9aee9cd6e70f32e9a0ec4a2.
Revert "pegasusq: Add flexrate capability into Kconfig"

This reverts commit 598410d6be7f8b38005361688bec615bff9ee5f9.