boards: imx93_evk: add jlink runner support for a55 core

Added jlink runner support for A-core platform on i.MX93 EVK board,
so that can use "west flash" to download zephyr.bin to DDR memory
and then boot the Zephyr on Cortex-A55 Core0.

Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>