Update scripts to look for binary artifacts in bazel-bin/

hack/lib/util.sh

@@ -167,12 +167,19 @@ kube::util::host_platform() {
 kube::util::find-binary-for-platform() {
   local -r lookfor="$1"
   local -r platform="$2"
-  local -r locations=(
+  local locations=(
     "${KUBE_ROOT}/_output/bin/${lookfor}"
     "${KUBE_ROOT}/_output/dockerized/bin/${platform}/${lookfor}"
     "${KUBE_ROOT}/_output/local/bin/${platform}/${lookfor}"
     "${KUBE_ROOT}/platforms/${platform}/${lookfor}"
   )
+  # Also search for binary in bazel build tree.
+  # In some cases we have to name the binary $BINARY_bin, since there was a
+  # directory named $BINARY next to it.
+  locations+=($(find "${KUBE_ROOT}/bazel-bin/" -type f -executable \
+    \( -name "${lookfor}" -o -name "${lookfor}_bin" \) 2>/dev/null || true) )
+
+  # List most recently-updated location.
   local -r bin=$( (ls -t "${locations[@]}" 2>/dev/null || true) | head -1 )
   echo -n "${bin}"
 }