libcamera: ipa_module: add path to module loading error message

Add an error message to tell, if an IPA module failed to load, the
path to the IPA module shared object that was attempted to be loaded.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>

src/libcamera/ipa_module.cpp

@@ -289,6 +289,10 @@ int IPAModule::loadIPAModuleInfo()
 unmap:
 	munmap(map, soSize);
 close:
+	if (ret)
+		LOG(IPAModule, Error)
+			<< "Error loading IPA module info for " << libPath_;
+
 	close(fd);
 	return ret;
 }