msm: smsm: Rename LTE Coexistence Bit

The LTE Coexistence bit has been renamed to just SMSM_PROC_AWAKE since
it is now being used for more general is-processor-awake signaling.

Change-Id: I9007c6c91ce3338c790864bf09318edbcb6d50c0
Signed-off-by: Eric Holmberg <eholmber@codeaurora.org>