mako_hotplug: toggle able screen off maximum frequency

Change-Id: I804b1e357417575c3ae32dc50f9009a71197046e
mako_hotplug: prevent double suspend and resume

Change-Id: Ie830d9eed9ea7a1d6fd5d536dc684b691d6059da
msm: mdss: please be quiet

Change-Id: Id2b80b66c7fc6fca0f3a15d4adaed008823c29a2
msm: msm_rq_stats: convert cputime64_t to u64
cpufreq: ondemand_eps: convert cputime64_t to u64
cpufreq: stats: convert cputime64_t to u64
msm: mdss: lcd notifier Only pass display state to lcd_notifer_call_chain

 - We can pass 'NULL' directly to blocking_notifier_call_chain
 - Remove unused struct 'lcd_event'
ARM: dts: msm8974: Allow power collapse as minimum l2 gdhs mode

This fixes warnings "IRQ40 no longer affine to CPUn". The switch
to C2 is also hardly understandable.