If pxa2xx_drv_pcmcia_add_one fails, it will go to err1 error path.
Add a missing clk_put in the error path.

Checking the ret value after the for loop is redundant, it is always false.
Thus remove the redundant checking.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Acked-by: NEric Miao <eric.y.miao@gmail.com>
Acked-by: NMarek Vasut <marek.vasut@gmail.com>
Signed-off-by: NHaojian Zhuang <haojian.zhuang@gmail.com>