Fix SpaActivity launched twice for App Info

This happens when shouldShowTwoPaneDeepLink() return true, the
InstalledAppDetailsTop onCreate() is called twice.

Only try start spa when the activity is not finishing to fix.

Bug: 236346018
Test: Manually with Settings
Change-Id: I4b09fba0733a6451a2ba6fd90960f9151692a2ad
1 file changed