Comment in pico_configure_ip4_address uses wrong definition names

[mattmyne]

A comment in CMakeLists.txt pico_configure_ip4_address function incorrectly references the CYW43_DEFAULT_IP_AP_ADDRESS compile definition name as CYW43_DEFAULT_AP_IP_ADDRESS.

This should be fixed to avoid user confusion when setting an alternative IP in AP mode.

[mattmyne]

Added PR #1892 that also updates the default station IP definition names, from CYW43_DEFAULT_IP_... to CYW43_DEFAULT_IP_STA_...

[kilograham]

merged into develop