[iot] Load Trusty to different address for AIY 1G/3G ddr board

Trusty image should be loaded to different address for AIY 1G/3G ddr
board which have different ddr size. Use board id to distinguish
different baseboard, load trusty image to 0x7e00_0000 for AIY 1G ddr
board and 0xfe00_0000 for AIY 3G ddr board.

Test: build and boot Trusty ok for AIY 1G/3G ddr board.

Change-Id: I62d8a19b13fe19f38075512a6faa4bbb36f74791
Signed-off-by: Ji Luo <ji.luo@nxp.com>
3 files changed