soc: xtensa: nxp_adsp: Enable cache management API for NXP SoCs

Thanks to PR [1] which introduces support for cache management
operations on xtensa architecture NXP SoCs can now use the
Zephyr native cache management API.

This commit enables some configurations that will allow us
to use the native Zephyr cache management API.

[1]: https://github.com/zephyrproject-rtos/zephyr/pull/50136

Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>

soc/xtensa/nxp_adsp/Kconfig

@@ -6,6 +6,7 @@
 config SOC_FAMILY_NXP_ADSP
 	bool
 	select ARCH_HAS_COHERENCE
+	select CPU_HAS_DCACHE
 
 if SOC_FAMILY_NXP_ADSP
 

soc/xtensa/nxp_adsp/Kconfig.defconfig

@@ -4,3 +4,6 @@
 # SPDX-License-Identifier: Apache-2.0
 
 source "soc/xtensa/nxp_adsp/*/Kconfig.defconfig.series"
+
+config CACHE_MANAGEMENT
+	def_bool y