Revert "one more thing"

This reverts commit 39cf985bba64a7d7ceec1f87c634cd7eb48e4f6f.
Revert "Makefile: adding config variable for Os/O2/O3 compilation"

This reverts commit 757f4d254d4239873fef2f614790e6fea171538e.
Revert "adding one last linaro build flag"

This reverts commit fc8974d5047c068ccdc96116708bd577541ba7c8.
Revert "revert some things i didnt mean to change in last commit"

This reverts commit b44f96adeb2817f07956c286c0945f36aadc63a1.
Revert "Makefile: Optimizing build-options for linaro"

This reverts commit 5726f7c81ea68b5d1a64252d90cad7cf9b30b16b.