The loop counter 'count' is missing an increment, so we could end up
with an infinite loop. Add in a pre-increment to count to fix this.
Detected by CoverityScan, CID#1450120 ("Logically Dead Code")
Fixes: 1a425dbf1a10 ("ASoC: rt5663: Update the calibration funciton") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Mark Brown <broonie@kernel.org>