twl6030 battery: don't disable gas gauge in suspend

We need the gas gauge to continue measuring power drain in suspend.
Keep it always enabled.

Change-Id: I5b6dd4d8f63e3269dacf8d8dfb814670bfa8937a
Signed-off-by: Sivakumar Pothireddy <sivakumar.pothireddy@ti.com>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>