fix(android): correct content description component

[garymathews]

• Correct the component that content description is set on for TextField and ImageView

TEST CASE

• Check content description via TalkBack service or Appium.

const win = Ti.UI.createWindow({
	layout: 'vertical',
	backgroundColor: 'gray'
});
const txt = Ti.UI.createTextField({
	top: 20,
	value: 'Some random text.',
	accessibilityLabel: 'RandomText'
});
const img = Ti.UI.createImageView({
	top: 20,
	image: 'https://garymathews.com/droid.gif',
	accessibilityLabel: 'DroidImage'
});

win.add([ txt, img ]);
win.open();

JIRA Ticket

[build]

	Fails
🚫	Tests have failed, see below for more information.

	Messages
📖	✊ The commits in this PR match our conventions! Feel free to Rebase and Merge this PR when ready.
📖	❌ 2 tests have failed There are 2 tests failing and 955 skipped out of 16866 total tests.
📖	💾 Here's the generated SDK zipfile.

Tests:

Classname	Name	Time	Error
android.emulator.Titanium.UI.View	"after all" hook for "rgba fallback" (5.0.2)	20.451	Error: Timeout of 10000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (app.js)
android.emulator.Titanium.UI.View	"after each" hook for "getOrCreateView() should always return a View" (5.0.2)	10.378	Error: Timeout of 10000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (app.js)

Generated by 🚫 dangerJS against f25aaf5

[jquick-axway]

CR: Pass

[ewanharris]

FR Pass. content-desc now correctly shows for ImageView and TextField