ARM: Fix negative idle stats for offline cpu

We see negative idle stats because of cpu dying without
cleaning up idle entry statistics. When a cpu is offline,
the most immediate thing you'd want to do is just call
into cpu_die() and not waste time calling notifier(IDLE_START).

Signed-off-by: Srivatsa Vaddagiri <vatsa@codeaurora.org>
Signed-off-by: Taniya Das <tdas@codeaurora.org>
makefile: Add a compiler flag
Revert "makefile: Add a compiler flag"

This reverts commit 2d85d28ebfa2312d0b5b64c5b58ce5e02a2006ef.
Revert "arm: vfp: Use hardfloat and neon libraries"

This reverts commit 5f4328adfa038aa326beb2c806357a33704de45c.
build-script: colorized and tuned
smdk4210: cpufreq: +25mV for 1.6GHz and -25mV for 100MHz
smdk4210: New thermal throttle values