lc-compliance: Ensure stream's colorspace is set after validate()

StreamConfiguration::colorspace is a std::optional<> and if unset by
the user, it should be populated by the pipeline handler after the
CameraConfiguration::validate().

Add a EXPECT_TRUE() check to ensure that each stream in the
CameraConfiguration has a colorspace set.

Signed-off-by: Umang Jain <uajain@igalia.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Robert Mader <robert.mader@collabora.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

src/apps/lc-compliance/helpers/capture.cpp

@@ -52,6 +52,9 @@ void Capture::configure(libcamera::Span<const libcamera::StreamRole> roles)
 		FAIL() << "Configuration not valid";
 	}
 
+	for (const auto &cfg : *config_)
+		EXPECT_TRUE(cfg.colorSpace) << "Colorspace not set for " << cfg;
+
 	if (camera_->configure(config_.get())) {
 		config_.reset();
 		FAIL() << "Failed to configure camera";