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.
mach-msm/cpufreq: set safe frequencies from config

Signed-off-by: Dennis Rassmann <showp1984@gmail.com>

Conflicts:
	arch/arm/mach-msm/cpufreq.c
msm_thermal: Import driver from jb422 branch
Default Intelli-demand config