soc: arm: Clean up HAS_CMSIS_CORE usage.

For nordic_nrf, this commit relocates HAS_CMSIS_CORE selection from
SoC Kconfig to the HAL module Kconfig, as done for other SoCs.

For nxp_kinetis, remove redundant HAS_CMSIS_CORE selection in SoC
Kconfig, as it is already selected by the HAL Kconfig.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>