media: hantro: test the correct variable in probe()

This should be testing "vpu->clocks[0].clk" instead of "vpu->clocks".

Fixes: eb4cacdfb998 ("media: hantro: add fallback handling for single irq/clk")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>