Fix Android comment and docblock typos

Summary:
👋 Hello! Thanks for react-native, it’s a great project.

I was digging into the Android implementation in _ReactAndroid_ and noticed a couple typos in the documentation. I went through and tried to fix all the typos I could find using [aspell](http://aspell.net).

Not applicable: these changes are only to comments, and CI should be skipped.

[ANDROID][ENHANCEMENT][*] - Correct comment and docblock typos
Closes https://github.com/facebook/react-native/pull/17049

Differential Revision: D6472182

Pulled By: shergin

fbshipit-source-id: 7e62cab118609596b483d1cf16c3abf651d6753b

ReactAndroid/src/main/java/com/facebook/react/devsupport/DevServerHelper.java

@@ -54,7 +54,7 @@ import org.json.JSONObject;
  *
  * One can use 'debug_http_host' shared preferences key to provide a host name for the debug server.
  * If the setting is empty we support and detect two basic configuration that works well for android
- * emulators connectiong to debug server running on emulator's host:
+ * emulators connection to debug server running on emulator's host:
  *  - Android stock emulator with standard non-configurable local loopback alias: 10.0.2.2,
  *  - Genymotion emulator with default settings: 10.0.3.2
  */

ReactAndroid/src/main/java/com/facebook/react/devsupport/DevSupportManagerImpl.java

@@ -575,7 +575,7 @@ public class DevSupportManagerImpl implements
         PackageInfo thisPackage = mApplicationContext.getPackageManager()
             .getPackageInfo(packageName, 0);
         if (mJSBundleTempFile.lastModified() > thisPackage.lastUpdateTime) {
-          // Base APK has not been updated since we donwloaded JS, but if app is using exopackage
+          // Base APK has not been updated since we downloaded JS, but if app is using exopackage
           // it may only be a single dex that has been updated. We check for exopackage dir update
           // time in that case.
           File exopackageDir = new File(