Avoid home intent normalization if it is from trusted callers

In order to be compatible with several places that are starting
home with component specified.
- Press home button from Taskbar
- RWC#startHomeOnTaskDisplayArea
- WmTests

Bug: 385721820
Bug: 384656159
Test: RootWindowContainerTest
Flag: com.android.window.flags.normalize_home_intent
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:2da0fd3573767fe585bd9d349cc4b69058c77a6f)
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:311ca9d520f8be1017488aa9a1a354c070ab6ea6)
Merged-In: Ie192b226eac970e9e897214059abd1615f1c5cf5
Change-Id: Ie192b226eac970e9e897214059abd1615f1c5cf5