Add errorProvider in DesktopMouseTestRule

WaitUtils currently output
"Error ensuring that "null" within 10000ms" which is not useful at all
when failure happens.

Added display and cursor info to this thrown exception

Bug: 427568546
Test: manual
Flag: EXEMPT test rule fix
Change-Id: I16acbcc27967afc8fc1c4dd7d1d4664f7aac24dc
1 file changed