uboot-phytec

MLK-14326-13 mx6ulevk: Add DTS files

Update i.MX6ul dtsi file and add mx6ul 14x14 and 9x9 evk DTS file
to latest in kernel.
To support DM QSPI driver, modify the DTS files with adding a spi0
alias for qspi node and changing the the n25q256a flash node's compatible
to "spi-flash"

Signed-off-by: Ye Li <ye.li@nxp.com>