Skip MediaStoreUiTest for automotive

Sdk_gcar_x86 doesn't have documentUI package,
Thus supportsHardware() should return false, then
testGetDocumentUri should just return.
Like watch and TV

Bug: 139959923
Test: lunch sdk_gcar_x86-userdebug
Test: android.provider.cts.MediaStoreUiTest#testGetDocumentUri
Change-Id: I3b4df05a338bdd0638f4493c17e79f9ea1296aef
1 file changed