msm: gdsc: Increase GDSC enable/disable timeout to 1 ms

A few gdsc_oxili_gx timeouts have been seen on 8974, even
though the state-machine eventually moves to completion.
Increase the timeout to 1 ms for now.

Change-Id: I42257aa64b83e596d36952240f5e53e25b3f5ac6
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>