Merge pull request #35983 from yongtang/35980-Dockerfile.simple

Add required pkg-config for Dockerfile.simple

Dockerfile.simple

@@ -27,6 +27,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 		ca-certificates \
 		e2fsprogs \
 		iptables \
+		pkg-config \
 		procps \
 		xfsprogs \
 		xz-utils \