List more affected models.

wiki/src/news/version_1.2.3.mdwn

@@ -46,7 +46,8 @@ for technical details.
 
 * Tails' MAC spoofing feature [[disables
   Broadcom BCM43224 wireless adapters|support/known_issues#bcm43224]].
-  This network adapter can be found in the MacBook Air 5,1.
+  This network adapter can be found in the MacBook Air 4,1, 4,2, 5,1
+  and 5,2.
 
 * [[Longstanding|support/known_issues]] known issues.
 

wiki/src/support/known_issues.mdwn

@@ -205,7 +205,8 @@ it fails to spoof. To make it work you must
 please read the documentation carefully and make sure you understand
 the consequences before doing so.
 
-This network adapter can, for instance, be found in the MacBook Air 5,1.
+This network adapter can, for instance, be found in the MacBook Air
+4,1, 4,2, 5,1 and 5,2.
 
 Security issues
 ===============