falcon: Rename defconfig

Change-Id: I2c7046431b3b5379991f9a386d7bfda373bd2ddf
Revert "falcon: Rename defconfig"

This reverts commit 3131969db5bcc7d2f6fb08b98f659254c87497d0.
Revert "falcon: Move wifi firmware target for new kernel"

This reverts commit a523104c25412c729054ae8215717f5cd4d59387.

Change-Id: I86c3f894a226ebb63ec4357827202efe42a8c8c0