Launcher3: Fix crash in SurfaceTransactionApplier

Calling getViewRootImpl on a targetView is nullable, so we'd add a null
check here before getting its SurfaceControl.

Bug: 273143527
Test: manual
Change-Id: I245bc553ca32cf5b86978f826cfb2ca92def84d7
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
Signed-off-by: Jackeagle <jackeagle102@gmail.com>
1 file changed