base: class: Remove undesired semi-colon from LIBCAMERA_O_PTR

The LIBCAMERA_O_PTR() define adds the ';' at the end of the
templated call to _o().

While this works for the only current user in camera_manager.cpp, even
the statement there adds another semi-colon following it.

The addition of the semi-colon in the define unnecessarily prohibits the
macro from being used in places other than the end of a statement.

Remove it.

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

include/libcamera/base/class.h

@@ -50,7 +50,7 @@ public:									\
 	using Public = klass;
 
 #define LIBCAMERA_O_PTR()						\
-	_o<Public>();
+	_o<Public>()
 
 #else
 #define LIBCAMERA_DECLARE_PRIVATE()