Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/19e6bdab6d0e
Author: Sam Foster <sfoster@mozilla.com>
Desc: Merge pull request #32697 from Phoxygen/bug1216496-email_rtl_refactoring

Bug 1216496 - [email] RTL CSS refactor. r=jrburke

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https://hg.mozilla.org/integration/gaia-central/rev/d1f62f64e691
Author: Augustin Trancart <augustin.trancart@phoxygen.com>
Desc: Bug 1216496 - [email] RTL CSS refacto

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "bbee9242bfa00acc1b992cbf8712e9888504ea31", 
+        "git_revision": "7607cb7492ca9063da8f2a8719706d68eab5d451", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "30bc519e9ed2ce113805d13e241f128c66766f9c", 
+    "revision": "19e6bdab6d0e9c8f51c6dab1200cbd3a9b26fb19", 
     "repo_path": "integration/gaia-central"
 }