scripts: Reduce toolchain download wget log

So we don't overwhelm the CI log

Change-Id: Ib051467bfa9bd484e83cdf790aa3f74a01783e0a

fetch-rust-toolchain.sh

diff --git a/fetch-rust-toolchain.sh b/fetch-rust-toolchain.sh
index 7aed0e2..5771ce6 100755
--- a/fetch-rust-toolchain.sh
+++ b/fetch-rust-toolchain.sh
@@ -77,7 +77,7 @@
 
     try mkdir -p "${OUT}"
 
-    try wget -O "${OUT}/${tarball}" "${PUBLIC_ARTIFACTS_URL}/${tarball}"
+    try wget --progress=dot:giga -O "${OUT}/${tarball}" "${PUBLIC_ARTIFACTS_URL}/${tarball}"
     try wget -O "${OUT}/${checksum}" "${PUBLIC_ARTIFACTS_URL}/${checksum}"
 
     # Workaround the fact that we use the datestamped version of the filename

install-toolchain.sh

diff --git a/install-toolchain.sh b/install-toolchain.sh
index 2347a46..d4fdc67 100755
--- a/install-toolchain.sh
+++ b/install-toolchain.sh
@@ -75,7 +75,7 @@
   DOWNLOAD_DIR="${OUT}/tmp"
   mkdir -p "${DOWNLOAD_DIR}"
 
-  wget -P "${DOWNLOAD_DIR}" "${DOWNLOAD_URL}"
+  wget --progress=dot:giga -P "${DOWNLOAD_DIR}" "${DOWNLOAD_URL}"
   wget -P "${DOWNLOAD_DIR}" "${DOWNLOAD_URL}.sha256sum"
   pushd "${DOWNLOAD_DIR}" > /dev/null
   try sha256sum -c "${TOOLCHAIN_TARBALL}.sha256sum"