MAINTAINERS: Force AM6 boards to start with 'am6'

Force all AM6-based boards to start with 'am6' which allows to
place all boards for the same SoC next to each other. The 'ti_'
prefix would end in spreading boards all over the board directory.

Signed-off-by: Daniel Schultz <[email protected]>

Author: dnltz

MAINTAINERS.yml

@@ -2586,7 +2586,7 @@ TI K3 Platforms:
     - gramsay0
   files:
     - boards/*/*phycore_am6*/
-    - boards/*/*ti_am6*/
+    - boards/*/am6*/
     - drivers/*/*ti_k3*
     - dts/bindings/*/ti,k3*
     - soc/*/ti_k3/