atmel_mxt_ts: don't call suspend/resume handlers twice

atmel_mxt_ts: don't call suspend/resume handlers twice

BZ: 34261

When a driver has earlysuspend handlers that call into normal
suspend/resume handlers and both are registered, the latter will
get called twice. This patch avoids registering normal pm ops when
earlysuspend is enabled.

Change-Id: I3f455fac6b9c3f0d06a36db46eee5e32a73b60d5
Signed-off-by: Dragos Tatulea <dragos.tatulea@intel.com>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Reviewed-on: http://android.intel.com:8080/46939
Reviewed-by: Liu, Hong <hong.liu@intel.com>
Reviewed-by: Du, Alek <alek.du@intel.com>
Tested-by: Wang, Zhifeng <zhifeng.wang@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>