libcamera: include: Include missing stdint.h header

Many libcamera headers that use standard C integer types do not include
stdint.h. Fix the omission.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

include/libcamera/internal/framebuffer.h

@@ -8,6 +8,7 @@
 #pragma once
 
 #include <memory>
+#include <stdint.h>
 #include <utility>
 
 #include <libcamera/base/class.h>