thermal: rockchip: fix an error code

thermal: rockchip: fix an error code

3.19.8-ckt2 -stable review patch.  If anyone has any objections, please let me know.

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From: Dan Carpenter <dan.carpenter@oracle.com>

commit 0d0a2bf6ed4b489eef9a84450b3d90e6e001ce63 upstream.

There is a copy and paste bug, "->clk" vs "->pclk", so we return the
wrong error code here.

Change-Id: I3ef649ce940016fd9214ea924b243a07bdc58248
Fixes: cbac8f639437 ('thermal: rockchip: add driver for thermal')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Caesar Wang <wxt@rock-chips.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>