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

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https://hg.mozilla.org/integration/gaia-central/rev/b58f8db1d1f4
Author: Min-Zhong "John" Lu <jlu@mozilla.com>
Desc: Merge pull request #26104 from mnjul/bug_1097450_save_group_active_layout

Bug 1097450 - Save (to settings) the activeLayout of groups supported by one layout, when we change to that layout. r=timdream, f=johnhu

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https://hg.mozilla.org/integration/gaia-central/rev/83758711f51d
Author: John Lu [:mnjul] <jlu@mozilla.com>
Desc: Bug 1097450 - Save (to settings) the activeLayout of groups supported by one layout, when we change to that layout

- The whole currentActiveLayout logics have been consolidated from KeyboardHelper to InputLayouts, as part of our goal to disentangle KeyboardHelper.
- Also, properly define the undefiness of activeLayout in InputLayout's layouts.

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https://hg.mozilla.org/integration/gaia-central/rev/91b89c3dc29a
Author: RickyChien <RickyChien@users.noreply.github.com>
Desc: Merge pull request #26311 from gregarndt/bug_1101942_xulrunner_sdk_path

Bug 1101942 - add search path found in nightly ftp package r=@RickyChien, r=@martinthomson

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https://hg.mozilla.org/integration/gaia-central/rev/7687a62d90e1
Author: Greg Arndt <garndt@mozilla.com>
Desc: Bug 1101942 - add search path found in nightly ftp package

	modified:   Makefile

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https://hg.mozilla.org/integration/gaia-central/rev/0a78a6b4217c
Author: RickyChien <RickyChien@users.noreply.github.com>
Desc: Merge pull request #26390 from RickyChien/bug-1103819

Bug 1103819 - Enable parallel build by default r=@cctuan

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https://hg.mozilla.org/integration/gaia-central/rev/56af39b1b397
Author: Ricky Chien <ricky060709@gmail.com>
Desc: Bug 1103819 - Enable parallel build by default
Bumping manifests a=b2g-bump