Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/3fb4a7363f0d
Author: Martijn <martijn.martijn@gmail.com>
Desc: Merge pull request #31349 from mwargers/1193844

Bug 1193844 - Fix failure in test_settings_change_ring_tone.py

========

https://hg.mozilla.org/integration/gaia-central/rev/d33d8abafbb3
Author: Martijn Wargers <mwargers@mozilla.com>
Desc: Bug 1193844 - Fix failure in test_settings_change_ring_tone.py

========

https://hg.mozilla.org/integration/gaia-central/rev/fe55bd39d56f
Author: Martijn <martijn.martijn@gmail.com>
Desc: Merge pull request #31287 from mwargers/1191023

Bug 1191023 - Fix failure in test_settings_do_not_track.py

========

https://hg.mozilla.org/integration/gaia-central/rev/c0051bc10548
Author: Martijn Wargers <mwargers@mozilla.com>
Desc: Bug 1191023 - Fix failure in test_settings_do_not_track.py

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "4b09b8824e3c68d8f5208a53f9ae3a8917dc9560", 
+        "git_revision": "5cd4112c572d6dafe08cd4d40b72aa6bda9e5308", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "74ba42b610e520caa4e67264d52ef3c30d3193ae", 
+    "revision": "3fb4a7363f0dc86744b867116b19747136c6e98e", 
     "repo_path": "integration/gaia-central"
 }