Add prebuilt protobuf 3.9.1 to vendor partition.

Needed to work around a Qualcomm HAL prebuilt.

Bug: 203713560
Bug: 258322017
Bug: 258589373
Bug: 258632688
Test: Forrest
Change-Id: I8ebc9fdfcf6f73ae4551acb1b082c26cb983e392
(cherry picked from commit f180675f)
Merged-In: I8ebc9fdfcf6f73ae4551acb1b082c26cb983e392