qe: add u-qe support to arm board

ls1021 is arm-core and support qe which is u-qe.
add u-qe init for arm board.

Signed-off-by: Zhao Qiang <B45475@freescale.com>
[York Sun: Fix compiling error caused by u_qe_init()]
Reviewed-by: York Sun <yorksun@freescale.com>
7 files changed