[automerge] Add size check on PPS#policy 2p: 12850a1506

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Wifi/+/22633469

Bug: 275340417
Change-Id: I42a7e7adbffe9bd9e6474a49af297dc249954e2f
Merged-In: Iede626004a1ea46f47b185777c97794e4d3ded4e