docker-distribution: adjust to new go.bbclass

We want to build in ${S}, so we now require an explicit cd ${S}
to avoid landing in the build directory.

Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>

recipes-containers/docker-distribution/docker-distribution_git.bb

@@ -13,6 +13,8 @@ PACKAGES =+ "docker-registry"
 PV = "v2.6.2"
 S = "${WORKDIR}/git/src/github.com/docker/distribution"
 
+GO_IMPORT = "import"
+
 inherit goarch
 inherit go
 
@@ -33,6 +35,8 @@ do_compile() {
 	export GO_GCFLAGS=""
 	export CGO_LDFLAGS="${BUILDSDK_LDFLAGS} --sysroot=${STAGING_DIR_TARGET}"
 
+	cd ${S}
+
 	oe_runmake binaries
 }