layers/meta-resin-raspberrypi: Add .svg file for the NPE X500 M3
layers/meta-resin-raspberrypi: Add .svg file for the NPE X500 M3

Adds an SVG file with representative (not official) icon for the
NPE X500 M3 board.

Changelog-entry: Add .svg file for the NPE X500 M3 board
Signed-off-by: Adolfo E. García Castro <d6f094450f289d60a48be198bb5ad457ea8f4b31@gmail.com>

resin-os/resin-raspberrypi,resin-os/resin-raspberrypi