Revert "cpufreq: Disable cpu-boost"

This reverts commit cf7774ff1db00d3abf93b690cb93898d132082d3.
Revert "ramdisk: Remove cpu-boost"

This reverts commit 6663220b61cb90a5f6009a66dac36fe67b9f449c.
ramdisk: Make cpu-boost less aggressive

Avoid triggering hotplug events.
Revert "staging: android: ram_console: honor dmesg_restrict"

This reverts commit dd09979346813357200adf71b07003fc0a778089.

Signed-off-by: Patrick Tjin <pattjin@google.com>