libcamera: Add missing SPDX headers for miscellaneous CC0-1.0 contents

Miscellaneous files that are not considered copyrightable are missing an
SPDX-License-Identifier header. Fix this by adding a header listing the
CC0-1.0 license.

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

src/android/data/nautilus/camera_hal.yaml

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: CC0-1.0
+
 cameras:
   "\\_SB_.PCI0.I2C2.CAM0":
     location: back

src/android/data/soraka/camera_hal.yaml

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: CC0-1.0
+
 cameras:
   "\\_SB_.PCI0.I2C4.CAM1":
     location: front