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

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https://hg.mozilla.org/integration/gaia-central/rev/7c1f80073023
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Merge pull request #21338 from pivanov/bug-1001998

Bug 1001998 - RTL Button List (fake select) value is truncated from the right.

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https://hg.mozilla.org/integration/gaia-central/rev/f349af6b20b5
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Bug 1001998 - RTL Button List (fake select) value is truncated from the right.
Bumping manifests a=b2g-bump