msm: kgsl: Pass the right timeout to adreno_drawctxt_wait()

adreno_drawctxt_wait() expects the passed in timeout to be in
milliseconds and converts it to jiffies.  Unfortunately, so does
the caller so the timeout is shorter than it should be.

Change-Id: Ic0dedbad85d50b32dba0fbf3ebb914335bf55166
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>