msm: kgsl: Use the correct units for ADRENO_IDLE_TIMEOUT

In a few spots the ADRENO_IDLE_TIMEOUT value (measured in milliseconds)
was used directly for jiffy calculations resulting in timeouts that were
1000/HZ times longer than they should have been.  Use msecs_to_jiffies
for these situations.

CRs-Fixed: 448226
Change-Id: Ic0dedbad33630706d909931bf616bd69399f7ff1
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>