Revert "Read something that sounded like cortex-a8 might be a closer mcpu target"

This reverts commit 66a0e9f8d7995d8dff2baf2885ee60da7edcc5ad.
Revert "fixes cherry-pick from morfic"

This reverts commit 31d718b79f1a6b00f86ae17561cd4451713373e8.