Create x-android-4_2_2-a17-system-characteristics.xsd

Hi, 
We are from Samsung Research India Bangalore(SRI-B).
We have taken x-android-system-characteristics.XSD as base, and added new system characteristics items for Androidv4.2.2, corresponding to the definitions XSD x-android-4_2_2-a17-definitions.xsd

In attached content, our tests start from line:537(<!--Start of Tests from SRI-B -->). Please check the new tests, if these tests are accepted the corresponding tests shall be updated in x-android-system-characteristics.xsd of the main branch.

the new system characteristics items are introduced for the below tests:
        Active admin test
	Application permission test
	Connectivity test
	Keyguard  test
	Locale test
	Session initiation protocol(SIP) test
	Telephony test

Please review and do the needful.