arm: mvebu: Power up 2nd SATA port for Thecus N2350

Currently, only the 1st SATA port is powered up (by GPIO1 12).
Add GPIO1 13 in board initialization to power up the 2nd SATA port.

Note that this patch depends on the initial add-support patch:
https://patchwork.ozlabs.org/project/uboot/patch/20230201231306.7010-1-mibodhi@gmail.com/



Signed-off-by: Tony Dinh <mibodhi@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>