use explicit revisions so i can use the docker build cache

docker/scripts/install-dependencies-hackrf.sh

@@ -3,6 +3,9 @@ set -euxo pipefail
 
 function cmakebuild() {
   cd $1
+  if [[ ! -z "${2:-}" ]]; then
+    git checkout $2
+  fi
   mkdir build
   cd build
   cmake ..
@@ -20,8 +23,9 @@ BUILD_PACKAGES="git cmake make patch wget sudo gcc g++ libusb-dev fftw-dev"
 apk add --no-cache $STATIC_PACKAGES
 apk add --no-cache --virtual .build-deps $BUILD_PACKAGES
 
-git clone --depth 1 https://github.com/mossmann/hackrf.git
+git clone https://github.com/mossmann/hackrf.git
 cd hackrf
+git checkout 06eb9192cd348083f5f7de9c0da9ead276020011
 cmakebuild host
 cd ..
 rm -rf hackrf