MLK-21905 mx7ulp_evk: Change kernel DTB to EVKB board

The latest mx7ulp evk board is renamed to EVKB board and has dedicated
DTB files. Modify the kernel DTB names in u-boot to use the new DTB.

Signed-off-by: Ye Li <ye.li@nxp.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
(cherry picked from commit 297a924ddaf456a5a175d9056c0bc45116cc49ce)
5 files changed