universal_c210: check the NULL pointer when get the PMIC

PMIC 2.0 require to test return pointer from pmic_get()

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Cc: Wolfgang Denk <wd@denx.de>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
1 file changed