MAINTAINERS: add valeriosetti as collaborator

Add valeriosetti as collaborator for:
- Mbed TLS
- TF-M Integration

Signed-off-by: Valerio Setti <[email protected]>

Author: valeriosetti

MAINTAINERS.yml

@@ -2448,6 +2448,7 @@ Mbed TLS:
     - ceolin
   collaborators:
     - ithinuel
+    - valeriosetti
   files:
     - tests/crypto/mbedtls/
     - tests/benchmarks/mbedtls/
@@ -3937,6 +3938,7 @@ TF-M Integration:
   collaborators:
     - Vge0rge
     - ithinuel
+    - valeriosetti
   files:
     - samples/tfm_integration/
     - modules/trusted-firmware-m/