Add davidesalerno to OWNERS

Signed-off-by: Davide Salerno <dsalerno@redhat.com>

Author: davidesalerno

OWNERS

@@ -14,6 +14,8 @@ approvers:
   - grzpiotrowski
   - Thealisyed
   - rikatz
+  - davidesalerno
+  - bentito
 reviewers:
   - ironcladlou
   - knobunc
@@ -31,4 +33,6 @@ reviewers:
   - grzpiotrowski
   - Thealisyed
   - rikatz
+  - davidesalerno
+  - bentito
 component: Routing