boards: qorvo: adopt new zephyr:board directive and role

This updates the documentation of all the Qorvo boards to use
the new `zephyr:board::` directive.

Signed-off-by: Benjamin Cabé <[email protected]>

Author: kartben

boards/qorvo/decawave_dwm1001_dev/doc/index.rst

@@ -1,7 +1,4 @@
-.. _decawave_dwm1001_dev:
-
-Decawave DWM1001
-#################
+.. zephyr:board:: decawave_dwm1001_dev
 
 Overview
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