AUBURN HILLS -- Eric Church not only sings about "Springsteen."He wants to play like him, too.Like Bruce Springsteen's vintage shows, Church's concert on Saturday night, Feb. 25, at The Palace -- before a rare full-arena sell-out crowd of more than 20,000 -- was a lengthy (three hours and 10 minutes of music, plus a 20-minute intermission), generous and varied immersion into the country star's catalog.