libcamera: raspberrypi: Align include guard

The preprocessor directive '#pragma once' is non-standard, replace it
with the include guard used elsewhere in libcamera.

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

src/libcamera/pipeline/raspberrypi/staggered_ctrl.h

@@ -4,7 +4,8 @@
  *
  * staggered_ctrl.h - Helper for writing staggered ctrls to a V4L2 device.
  */
-#pragma once
+#ifndef __LIBCAMERA_PIPELINE_RASPBERRYPI_STAGGERED_CTRL_H__
+#define __LIBCAMERA_PIPELINE_RASPBERRYPI_STAGGERED_CTRL_H__
 
 #include <array>
 #include <initializer_list>
@@ -91,3 +92,5 @@ private:
 } /* namespace RPi */
 
 } /* namespace libcamera */
+
+#endif /* __LIBCAMERA_PIPELINE_RASPBERRYPI_STAGGERED_CTRL_H__ */

src/libcamera/pipeline/raspberrypi/vcsm.h

@@ -4,7 +4,8 @@
  *
  * vcsm.h - Helper class for vcsm allocations.
  */
-#pragma once
+#ifndef __LIBCAMERA_PIPELINE_RASPBERRYPI_VCSM_H__
+#define __LIBCAMERA_PIPELINE_RASPBERRYPI_VCSM_H__
 
 #include <iostream>
 #include <mutex>
@@ -144,3 +145,5 @@ private:
 };
 
 } /* namespace RPi */
+
+#endif /* __LIBCAMERA_PIPELINE_RASPBERRYPI_VCSM_H__ */