fix(studio): Update position map querying

[awkannan]

DT_HAS_COMPAT_STATUS_OKAY expects a compatible, what we actually want to do is check if the physical layout node in a position map is compatible with zmk_physical_layout and in ok status.

For that, we'd use DT_NODE_HAS_COMPAT_STATUS but COND_CODE_1 only supports functions with one or two args, so we have to use UTIL_AND to accomplish the same behavior.

[petejohanson]

Tested here with the posix MiniVan, and also confirmed that disabling one of the layouts there still works as expected. Thanks for the fix!