libcamera: ipa_module: Add log prefix

Make the IPAModule class inherit from Loggable to log the IPA module
name in all messages.

Before:

[14:19:55.743795676] [20250] ERROR IPAModule ipa_module.cpp:279 IPA module is not an ELF file

After:

[14:20:22.343795887] [20270] ERROR IPAModule ipa_module.cpp:279 ipa_vimc.so: IPA module is not an ELF file

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

src/libcamera/ipa_module.cpp

@@ -471,4 +471,9 @@ bool IPAModule::match(PipelineHandler *pipe,
 	       !strcmp(info_.pipelineName, pipe->name());
 }
 
+std::string IPAModule::logPrefix() const
+{
+	return utils::basename(libPath_.c_str());
+}
+
 } /* namespace libcamera */