am335x: Remove superseded DM timer driver
am335x: Remove superseded DM timer driver

agacek/util_libs,agacek/util_libs,winksaville/libplatsupport,seL4/libplatsupport,winksaville/libplatsupport,agacek/util_libs,agacek/libplatsupport,seL4/libplatsupport,agacek/libplatsupport,agacek/util_libs