[roll third_party/pigweed] targets/rp2040: Add bazel picotool support

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/214861
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https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 9a99d41a5439dd8..f135cd73cdbbafd
Roller-URL: https://ci.chromium.org/b/8745288911006883985
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Change-Id: I02d229eeee2b91acaad6dd64fd6339b759af3c35
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/215972
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diff --git a/third_party/pigweed b/third_party/pigweed
index 9a99d41..f135cd7 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 9a99d41a5439dd8092ad1cb63e197f45281c608f
+Subproject commit f135cd73cdbbafd0e546407a5df04a8f50c64585