buildtools-tarball: Add python3-setuptools

After the dependency on setuptools was dropped from python3-testtools, this
exposed eSDK dependencies in devtool and recipetool on python3-setuptools. Add
this to buildtools to fix build failures after the testtools fixes.

(From OE-Core rev: c4431b4dd27d290024472f315858a63aea2a733c)

Signed-off-by: Richard Purdie <[email protected]>

Author: rpurdie

meta/recipes-core/meta/buildtools-tarball.bb

@@ -11,6 +11,7 @@ TOOLCHAIN_HOST_TASK ?= "\
     nativesdk-python3-git \
     nativesdk-python3-jinja2 \
     nativesdk-python3-testtools \
+    nativesdk-python3-setuptools \
     nativesdk-python3-subunit \
     nativesdk-python3-pyyaml \
     nativesdk-python3-websockets \