Bumping gaia.json for 6 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/3c184c41a102
Author: George <georgeiscoming@gmail.com>
Desc: Merge pull request #21740 from cctuan/1037041

Bug 1037041 - [B2G][Flame][Music] Music app will not close after attempting to share through email in low memory environments

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https://hg.mozilla.org/integration/gaia-central/rev/47d7be1b36ca
Author: cctuan <georgeiscoming@gmail.com>
Desc: Bug 1037041 - [B2G][Flame][Music] Music app will not close after attempting to share through email in low memory environments

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https://hg.mozilla.org/integration/gaia-central/rev/1652abc73139
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #21625 from sharaf-tir/Bug_1037412_Date_selector_YMD_format_BG_issue

Bug 1037412 Date selector YMD format background image size issue fix

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https://hg.mozilla.org/integration/gaia-central/rev/2aa04b6365d7
Author: sharfudheen.parambil <sharfudheen.parambil@lge.com>
Desc: Bug 1037412 Date selector YMD format background image size issue fix

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https://hg.mozilla.org/integration/gaia-central/rev/122aafe4276f
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #21623 from sharaf-tir/Bug_1037402_Quicksettings_data_icon_alignment_issue

Bug 1037402 - Quick settings data icon alignment fix

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https://hg.mozilla.org/integration/gaia-central/rev/1a4f2dfd2490
Author: sharfudheen.parambil <sharfudheen.parambil@lge.com>
Desc: Bug 1037402 - Quick settings data icon alignment fix

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "5b4a1d76f824bdde90a5c3be6bd5f986b0646af1", 
+    "revision": "3c184c41a10208a0ef1b6331c6d272685ddd973e", 
     "repo_path": "/integration/gaia-central"
 }