Fix various problems in opcontrol

Support multiple CPU types in opcontrol
Use access(2) instead of opening files where possible
Mount /dev/oprofile at startup
Disable oprofiled when resetting current data session

Change-Id: Ifd0ff2a50c9229af01249aefd5cd9dce00c58bf4
Add oprofile host tool support for mips.

Provides general build support, and fixes one arm-specific change
in opannotate.

Change-Id: Ib4f8145719fb6b2a1e292b72c2bed044497c55c2
Merge "Fix various problems in opcontrol"
Merge "Add oprofile host tool support for mips."
Oprofile: Fix build w/ linaro 4.8.+
Oprofile: Merge android-4.3_r2.1