Dockerfile: use lz4 instead of lz4-tools

Since Ubuntu Jammy lz4-tools is only a virtual package which pulls in
lz4 as dependency.

Update documentation too.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

doc/build/gcc.rst

@@ -25,7 +25,7 @@ Depending on the build targets further packages maybe needed
 
     sudo apt-get install bc bison build-essential coccinelle \
       device-tree-compiler dfu-util efitools flex gdisk graphviz imagemagick \
-      liblz4-tool libgnutls28-dev libguestfs-tools libncurses-dev \
+      libgnutls28-dev libguestfs-tools libncurses-dev \
       libpython3-dev libsdl2-dev libssl-dev lz4 lzma lzma-alone openssl \
       pkg-config python3 python3-asteval python3-coverage python3-filelock \
       python3-pkg-resources python3-pycryptodome python3-pyelftools \

tools/docker/Dockerfile

@@ -97,7 +97,6 @@ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
 	libjson-glib-dev \
 	libgnutls28-dev \
 	libgnutls30 \
-	liblz4-tool \
 	libpixman-1-dev \
 	libpython3-dev \
 	libsdl1.2-dev \
@@ -108,6 +107,7 @@ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
 	libtool \
 	libudev-dev \
 	libusb-1.0-0-dev \
+	lz4 \
 	lzma-alone \
 	lzop \
 	mount \