ghost: Lower migration boost freq

* Max migration boost freq is unnecessary

Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>
ghost: Don't limit number of CPUs on suspend

* Fixes slow wakeup

Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>
cpufreq: cpu-boost: Boost to input_boost_freq when hotplugging a CPU

Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>