Fix type error in _get_mali_freqs:

_get_mali_freqs was creating a list of ints instead of strings which was leading
to type issues when calling _trace_read_stats on kernel 3.8. This also gets rid
of converting the GPU frequencies to MHz since that creates conflicts when we
read the frequencies later.

BUG=chromium:309770
TEST=power_LoadTest on peach pit
	make sure it finishes successfully

Change-Id: I40160a45fc48884d7a50fe6e0a5793f95d4843b9
Previous-Reviewed-on: https://chromium-review.googlesource.com/174044
(cherry picked from commit 940e00c5dc0b13ec47969064a7a38b09b28c1014)
Reviewed-on: https://chromium-review.googlesource.com/174840
Tested-by: Derek Basehore <dbasehore@chromium.org>
Reviewed-by: Todd Broch <tbroch@chromium.org>
1 file changed