Revert "misc: mnh: update to vendor release MNH_PV_1.0.8"

Revert this because we are seeing some instability (b/109634286).

This reverts commit f595f5bb.

Bug: 80391584
Change-Id: I701a0f7a6c57adc69923ab171deaf332ebfeea67
Signed-off-by: Cheng Gu <gucheng@google.com>