edi: Turn edi_chip_probe() into a bus probing function

Let our common bus-probing infrastructure handle the ID comparison.
This also makes the `flashchips' entry (KB9012) an actual chip entry
that carries its identification.

Change-Id: I9533ece2b1337281ea70cb2e3be7a74353a4a758
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.sourcearcade.org/c/flashprog/+/424
diff --git a/include/chipdrivers/probing.h b/include/chipdrivers/probing.h
index 561d6ef..18eb347 100644
--- a/include/chipdrivers/probing.h
+++ b/include/chipdrivers/probing.h
@@ -49,6 +49,7 @@
 struct id_info {
 	union {
 		uint32_t manufacture;
+		uint32_t hwversion;
 		uint32_t id1;
 	};
 	union {