MLK-10449-1: 74x164: Add new property registers-default

MLK-10449-1: 74x164: Add new property registers-default

For some platform such as imx7D SDB, one pin of 74x164 to
control all peripheral power supply(PERI_3V_EN).
The pin should keep in high voltage level when 74x164 loading,
otherwise the module depend on PERI_3V3 will lose power.
So add new property registers-default into 74x164 driver.

Signed-off-by: Sandor Yu <R01008@freescale.com>
Signed-off-by: Fugang Duan <B38611@freescale.com>
(cherry picked from commit: 61fe7af7e47dd8bf6acc91ceabd9e660d28de28a)