Describe the bug

Few issues while looking at Wi-Fi cred: https://github.com/zephyrproject-rtos/zephyr/blob/main/subsys/net/lib/wifi_credentials/wifi_credentials.c

• All APIs are still named _personal
• Only APIs wifi_credentials_get_by_ssid_personal_struct/wifi_credentials_get_by_ssid_personal_struct that are used by Wi-Fi cred shell have been extended to support Enterprise
• Non-Shell APIs: wifi_credentials_set_personal/wifi_credentials_get_by_ssid_personal are still purely personal (both and functionality)
• Tests https://github.com/zephyrproject-rtos/zephyr/tree/main/tests/net/lib/wifi_credentials have not been updated with Entreprise support

We should also revisit two variant of APIs regular (args) vs _struct (struct), not sure what was the motivation, but IMHO, we can make _struct as the standard (and may be drop _struct from the API name?).

Regression

• This is a regression.

Steps to reproduce

No response

Relevant log output

Impact

Functional Limitation – Some features not working as expected, but system usable.

Environment

No response

Additional Context

No response