Revert "OMAP4: Fix prefetch definition - was breaking runtime"

This reverts commit 6d2f420ae9585b836fd5bf5cfe625d4689b38f3b.
Revert "Revert "OMAP: Fix prefetch offset""

This reverts commit c30f7f205b82dea0e9cd13416dd0fc810832b518.
Revert "OMAP: Fix prefetch offset"

This reverts commit 1399fcd90378003c77570ae062fc14655aa768d5.
Revert "Fix prefetch value"

This reverts commit bf9ed900dd68e4266f7501d9debd98604bc10266.
Revert "ARM: OMAP4: l2x0: Set optimized value for prefetch offset"

This reverts commit dbc2d9c1dc0832078b4af925678d489c9692f159.
Revert "ARM: OMAP4: l2x0: Cleanup prefetch offset register setting"

This reverts commit bf6ab42b1fc4e88bb6763fc665de7d952aff9092.
Revert "Revert "ARM: OMAP4: l2x0: Set optimized value for prefetch offset""

This reverts commit 1e9588d042b0eb203d5660d0edb87b14f862a7ba.
omap4-common: Fix prefetch value from prior config