board: sensry: ganymed-bob - add west flash support

Adding support for using west flash to install new firmware
on the board.

Signed-off-by: Sven Ginka <[email protected]>

Author: tswaehn

boards/sensry/ganymed_bob/board.cmake

@@ -0,0 +1,5 @@
+# Copyright (c) 2025 sensry.io
+# SPDX-License-Identifier: Apache-2.0
+
+board_set_flasher_ifnset(sy1xx)
+board_finalize_runner_args(sy1xx)