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

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https://hg.mozilla.org/integration/gaia-central/rev/190969d3f936
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Merge pull request #33712 from mikehenrty/bug-1235802-pinning-library-fix

Bug 1235802 - Do not try to grab pin dialog after tapping pin button

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https://hg.mozilla.org/integration/gaia-central/rev/1916a9f945dd
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Bug 1235802 - Do not try to grab pin dialog after tapping pin button

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "f8f6f4ec5409e0ce2e75d42c12e8c81b6cc3b794", 
+        "git_revision": "48458b9d7c783d2acebcea7487a0b7fe7a3d71dc", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "81256fc2b688b3b02382d1c63bf71084b30a6f09", 
+    "revision": "190969d3f9362b0695b867b8062a6a15a673b6d7", 
     "repo_path": "integration/gaia-central"
 }