[roll third_party/pigweed] pw_rpc: Update Java service error with tip

Add a tip on how to possibly fix some linkage errors while the fix is
not yet done.

Original-Bug: 293361955
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/178812

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 20b5cd27bfe54bc..e1835d3d9149ec6
Roller-URL: https://ci.chromium.org/b/8765504915168097729
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I72bd97ed93bed6a315023222c4e30babe4301265
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/178859
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 20b5cd2..e1835d3 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 20b5cd27bfe54bc3138a03d3e003956537b1368b
+Subproject commit e1835d3d9149ec69350bb8e68cdadb53db066b7a