nagendra modadugu f623eaf077 timer: fix clock() implementation to match TPM2 library expectations ...

The clock() function was introduced to provide free running clock for
the TPM2 library, which expects this clock to run with a millisecond
resolution.

This patch fixes the bug where the function in fact was returning the
clock running at a microsecond resolution.

BRANCH=none
BUG=chrome-os-partner:43025,chrome-os-partner:47524
BUG=chrome-os-partner:50115
TEST=with the appropriate modification of the user of this function
      all lockout related TCG tests pass.

Signed-off-by: nagendra modadugu <ngm@google.com>
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/361180
(cherry picked from commit b4e78b309900402499b8742199fb4536570d3000)
(cherry picked from commit fefaa02a4f2c807a3ad50137bd7dba7f5f081c31)
Change-Id: Ic02fffca610426d22e58609eb8c3693aec96ad5c
Reviewed-on: https://chromium-review.googlesource.com/362118

2016-07-21 17:32:28 -07:00

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