Bumping gaia.json for 2 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/340f6676fc5d
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #11552 from rwaldron/905614

Bug 905614 - [Unit tests] Failed: ClockView updateAnalogClock with type error. r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/2d40de5fcfba
Author: Rick Waldron <waldron.rick@gmail.com>
Desc: Bug 905614 - [Unit tests] Failed: ClockView updateAnalogClock with type error.

https://bugzilla.mozilla.org/show_bug.cgi?id=905614

- Cannot repro test "failures"
- Added if statement to guard against [[Get]] property of undefined objects

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "9caa3c130cdfe2597d396d7fc4e70a2463d492ed", 
+    "revision": "340f6676fc5dc34f1b9ab0c40169c0c4fd744587", 
     "repo_path": "/integration/gaia-central"
 }