Revert "Implement kexec-hardboot"

This reverts commit cb16300847a6cdd3bf5aa3196c7a17dc8f9dcc65.
Implement kexec-hardboot

"Allows hard booting (i.e., with a full hardware reboot) to a kernel
previously loaded in memory by kexec.  This works around the problem of
soft-booted kernel hangs due to improper device shutdown and/or
reinitialization."
More info in /arch/arm/Kconfig.

Original author: Mike Kasick <mike@kasick.org>

Vojtech Bocek <vbocek@gmail.com>:
  I've ported it to mako and flo, it is based of my grouper port, which is
  based of Asus TF201 patche ported by Jens Andersen <jens.andersen@gmail.com>

  I've moved atags copying from guest to the host kernel, which means there
  is no need to patch the guest kernel, assuming the --mem-min in kexec call
  is within the first 256MB of System RAM, otherwise it will take a long time
  to load. I've also fixed /proc/atags entry, which would give the kexec-tools
  userspace binary only the first 1024 bytes of atags,
  see arch/arm/kernel/atags.c for more details.

  Other than that, memory-reservation code for the hardboot page and
  some assembler to do the watchdog reset on MSM chip are new for this device.

ayysir <dresadd09691@gmail.com>:
  kexec: use mem_text_write_kernel_word to set reboot_code_buffer args
  in order to avoid protection faults (writes to read-only
  kernel memory) when CONFIG_STRICT_MEMORY_RWX is enabled.

Signed-off-by: Vojtech Bocek <vbocek@gmail.com>
Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
drivers: input: ditch the old touch boost implementation. Compared to Ondemand touch boost this had a bit of latency. With the syscalls header we have access to functions to write directly to userspace files, which makes it easier since Google's boostpulse implementation relies on writing 1 to a certain file to boost the frequency on touch. Google relies on a userspace powerHal to do this (Mako and Flo don't touch boost through the PowerHal). In this case we rely solely on the Kernel side, so when theres a touch it writes to boostpulse. This is the touch driver part, next commit is needed to make this work.

Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
cpufreq: interactive: push this governor to Google's latest code which has the boostpulse interface from where we benefit from the previous commit.

Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>