Revert "mach-tegra: baseband-xmm-power: change comparative operator (==) to"

This reverts commit 6661e723e31b1cf9bce4971faed6e3fc83e7ddc9.
Revert "Add support for kexec-hardboot"

This reverts commit c12550482fadfb4418b608684fe39da12f8b6d2f.