msm: gsi: add 1ms delay before reset

As part of GSI reset workaround, a 1ms sleep needs to be added
between the first reset command and the second one.

Change-Id: I6131aa646edfd6192e4f0895a7cc97728d6f7536
CRs-Fixed: 1079245
Acked-by: Ady Abraham <adya@qti.qualcomm.com>
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>