[roll third_party/pigweed] pw_bluetooth: Switch from parameterized value to determining at run time

This change switches LESetExtendedScanParametersCommand from
parameterized num_entries to determining the value at run time.

Original-Bug: 305975969
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/176572

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: e8d8fa785beb557..922bbb9c684f29f
Roller-URL: https://ci.chromium.org/b/8766949178739845313
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: If9d6f5521d79598a494163fb0e1f059d863e3072
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/176625
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index e8d8fa7..922bbb9 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit e8d8fa785beb5572eeae7bd413eac625a4bf3705
+Subproject commit 922bbb9c684f29f615c9ec46108181a5115997fd