ENYO-3938: Prevent calling apply on console.log object in Firefox for Android.

Issue
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Firefox for Android runs into a loop whenever `enyo.log` is called.

Fix
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The first two strategies to invoke `console.log` via the `apply` method cause the issue. The fallback method of calling `console.log` directly works with Firefox for Android, so we exclude the browser from causing any of the first two strategies to be used.

Notes
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Once this has been fixed in the browser, we can consider removing the exclusion, probably predicated on the version in which this has been fixed.

Enyo-DCO-1.1-Signed-off-by: Aaron Tam <aaron.tam@lge.com>