MAINTAINERS: rpi_pico: Add @ajf58 as collaborator

Add @ajf58 as a collaborator for boards, drivers, etc related to
Raspberry Pi.

Signed-off-by: Andrew Featherstone <[email protected]>

Author: ajf58

MAINTAINERS.yml

@@ -3573,6 +3573,7 @@ Raspberry Pi Pico Platforms:
   collaborators:
     - yonsch
     - threeeights
+    - ajf58
   files:
     - boards/raspberrypi/
     - boards/adafruit/kb2040/
@@ -4993,6 +4994,7 @@ West:
   collaborators:
     - yonsch
     - threeeights
+    - ajf58
   files:
     - modules/hal_rpi_pico/
   labels: