msm: kgsl: Avoid excessive logging from KGSL

During adreno_start(), KGSL prints a log if it
cannot get the DCVS counters. Change to WARN_ONCE
to avoid excessive logging.

CRs-Fixed: 2017390
Change-Id: I7f0b1b31dae941a430895cfa71d221ee990cea72
Signed-off-by: Kyle Piefer <kpiefer@codeaurora.org>
1 file changed