Bumping gaia.json for 2 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/49571db60a9e
Author: Fernando Campo <fernando.campo@o2.com>
Desc: Merge pull request #12822 from gitmai/bug-920128-1.2-patch

Merge pull request #12609 from gitmai/bug-920128-FTE-skip-wifi (cherry picked from commit 2a0d1f6)(r=fcampo)

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https://hg.mozilla.org/integration/gaia-1_2/rev/1ee782a4e4cd
Author: Fernando Campo <fernando.campo@o2.com>
Desc: Merge pull request #12609 from gitmai/bug-920128-FTE-skip-wifi

Bug 920128 - FTE skip wireless screen (r=fcampo)(cherry picked from commit 2a0d1f66a2756a5c4887da30025120029e866df2)

Conflicts:
	apps/communications/ftu/test/unit/navigation_test.js