iosched: add SIO IO scheduller
Added SKY Readme
ef47s_defconfig: add custom config
cpufreq: add ALL the governors

Conflicts:

	arch/arm/configs/rohan_elite_defconfig
	drivers/cpufreq/cpufreq_interactive.c
Some fixes + enabled KSM
Add ef46l (IM-A830L) defconfig
Fix compile for GCC 4.7
arch/arm/Makefile: Enable pipe compiling

-pipe

Use pipes rather than temporary files for communication between the various stages of
compilation. This fails to work on some systems where the assembler is unable to read
from a pipe; but the GNU assembler has no trouble.
Makefile: adding config variable for Os/O2/O3 compilation
Makefile: Added ARM and Linaro optimizations
ef47s_defconfig: Changes: optimize Alot, path to compiler, localversion
Increase max readahead buffer
Revert "Increase max readahead buffer"

This reverts commit 86632e21dc47e0528d0dfaf76ddb6d5a1a77dcca.