CI: Move to clang-16

As this is now the stable release, move to using that now for our tests.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/docker/Dockerfile b/tools/docker/Dockerfile
index 20c2b2a..801bebf 100644
--- a/tools/docker/Dockerfile
+++ b/tools/docker/Dockerfile
@@ -12,7 +12,7 @@
 # Add LLVM repository
 RUN apt-get update && apt-get install -y gnupg2 wget xz-utils && rm -rf /var/lib/apt/lists/*
 RUN wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -
-RUN echo deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-14 main | tee /etc/apt/sources.list.d/llvm.list
+RUN echo deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-16 main | tee /etc/apt/sources.list.d/llvm.list
 
 # Manually install the kernel.org "Crosstool" based toolchains for gcc-12.2.0
 RUN wget -O - https://mirrors.edge.kernel.org/pub/tools/crosstool/files/bin/x86_64/12.2.0/x86_64-gcc-12.2.0-nolibc-aarch64-linux.tar.xz | tar -C /opt -xJ
@@ -39,7 +39,7 @@
 	binutils-dev \
 	bison \
 	build-essential \
-	clang-14 \
+	clang-16 \
 	coreutils \
 	cpio \
 	cppcheck \