ipa: raspberrypi: Rename the controller namespace from Rpi to RpiController

This avoids a namespace clash with the RPi namespace used by the ipa and
pipeline handlers, and cleans up the syntax slightly.

There are no functional changes in this commit.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

src/ipa/raspberrypi/controller/rpi/sharpen.hpp

@@ -11,7 +11,7 @@
 
 // This is our implementation of the "sharpen algorithm".
 
-namespace RPi {
+namespace RPiController {
 
 class Sharpen : public SharpenAlgorithm
 {
@@ -31,4 +31,4 @@ private:
 	double user_strength_;
 };
 
-} // namespace RPi
+} // namespace RPiController