tests: drivers: spi: add configuration for ke17z to test loopback

Add spi configurations of NXP frdm_ke17z and frdm_ke17z512 boards,
tested spi_loopback sample for lpspi drivers.
Update the "HAS_MCUX_*" kconfig to "DT_HAS_*" in testcase.yaml

Signed-off-by: Anke Xiao <anke.xiao@nxp.com>