Bumping gaia.json for 2 gaia-1_3 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_3/rev/c5c8b0124a33
Author: GaryChen(pychen) <mmm198219@gmail.com>
Desc: Merge pull request #15515 from mpizza/Bug_958224_isActive_condition

Bug 958224 - [B2G][Browser] Deactivating the browser in landscape mode causes the browser screen to cut off. r=alive.

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https://hg.mozilla.org/integration/gaia-1_3/rev/f989c0c52302
Author: mpizza <mmm198219@gmail.com>
Desc: Bug 958224 - [B2G][Browser] Deactivating the browser in landscape mode causes the browser screen to cut off
    --  add new condition 'opening' for isActive method.