[roll third_party/pigweed] pw_toolchain: Remove unnecessary toolchain arguments

* Restores param file support.
* Removes unnecessary toolchain arguments previously set to bogus values
  try and fuzz out toolchain behaviors.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/192896

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: e8de610d576dd4a..a27434745dc5cfd
Roller-URL: https://ci.chromium.org/b/8755908896705488161
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I07f20b02c26a4db7fbe616a0126da6c6bc229278
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/192789
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 e8de610..a274347 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit e8de610d576dd4a92564fbbc0bc2ff9a9d228627
+Subproject commit a27434745dc5cfd170f31d8fafc3e83ba292aaa7