Apply profiling changes

Change-Id: I4f60478aaaaeb98d13db1d28fe688c3fc091dcd1
Update gonk-misc to use miniperf-record b2g.mk

Change-Id: I0212e6c04f8d3fc254af57fc07d13f7f3266ded4
Revert to upstream platform_build.

Change-Id: I71a3a1c70b5b400a0e4a9f208024ce3062b15379
gonk-misc needs a separate master fork.

Otherwise we disable the entire JIT because we're missing bug 849103.
"Oops."

Change-Id: I0cded505d22c3ec1f62207fd0c2ccb3defb63bc3
gonk-misc: miniperf: Set correct name for synthetic anon mmaps

Change-Id: I2dcf6ab1b105b84cb79eb0faeacaee108fe96472