touchscreen: tweak some initialization parameters for better UI response

Signed-off-by: faux123 <reioux@gmail.com>
Readahead: Optimize divide/multiply by power of 2 using L/R shift - Fix
scripts: remove localversion "+" from kernel version strings
Signed-off-by: faux123 <reioux@gmail.com>
Merge 'v3.4.62' into jb-mr2 'v3.4.0'
487.5 Mhz GPU OC
defconfig: enable TIMER_SLACK.