marvell firwmare: update 8897 sdio firmware to 15.68.4.p7

Update 8897 uapsta firmware to latest version from Marvell.
This change is intended to bring us up-to-date with
Marvell's changes, and may improve stability issues with
reboot, reset, and/or suspend/resume.

While some tests from matfunc failed, we don't believe
this regresses significantly compared to p4.

TEST=network_WiFi_matfunc (some tests failed)

Change-Id: Iac63c08684e6255ce9dc5d85941878ba5ecbdc38
(cherry picked from commit b109afbcd1f2284cdef7d41a0ae06c9a1cb193c7)
Reviewed-by: mukesh agrawal <>
Commit-Queue: mukesh agrawal <>
Tested-by: mukesh agrawal <>
1 file changed