1. Add build configs for i.MX6ULL 9X9 EVK. Enable DM I2C driver and
   DM PMIC driver for pfuze3000. Convert power init codes to use
   DM PMIC driver.

2. Add lpddr2 script IMX6ULL_9X9_LPDDR2_400MHz_16bit_V1.2.inc for
   the 9x9 board.
   Refer the commit 44a84b44a84cd1bdcc54d722987e5f109510891b

3. Add DTS file for 9x9 evk board.

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