[Coverity CID :208189] Self assignment in soc/xtensa/intel_apl_adsp/soc.c

[zephyrbot]

Static code scan issues found in file:

https://github.com/zephyrproject-rtos/zephyr/tree/e089906b339aad4cd1b6589a3b6ce94782d93f54/soc/xtensa/intel_apl_adsp/soc.c

Category: Incorrect expression
Function: soc_set_power_and_clock
Component: Other
CID: 208189

Please fix or provide comments in coverity using the link:

https://scan9.coverity.com/reports.htm#v32951/p12996.

Note: This issue was created automatically. Priority was set based on classification
of the file affected and the impact field in coverity. Assignees were set using the CODEOWNERS file.

[dcpleung]

This is writing back to hardware register to clear bits.