clk: checking wrong variable in __set_clk_parents()

There is a cut and paste bug so we check "pclk" instead of "clk".

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>

diff --cc drivers/clk/clk-conf.c
Simple merge