manibuilder/anita: Add NetBSD 10.0 i386 & amd64 images

`dhcpcd' forks into background more eagerly now, so we tell it
to wait for an IP explicitly.

Binary packages for `pkg_add' seem unavailable for sparc64 atm.
Hopefully, we can add that at a later time.

Change-Id: I4980ad711e1a34d2fd049ee1ea53bba1f14f6310
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.sourcearcade.org/c/flashprog/+/134
diff --git a/util/manibuilder/Dockerfile.anita b/util/manibuilder/Dockerfile.anita
index c8dfae8..2e2b449 100644
--- a/util/manibuilder/Dockerfile.anita
+++ b/util/manibuilder/Dockerfile.anita
@@ -28,7 +28,7 @@
 ARG ORIGIN=https://review.sourcearcade.org/flashprog.git
 ARG PKG_PATH=http://cdn.netbsd.org/pub/pkgsrc/packages/NetBSD/amd64/7.1/All
 RUN cd && anita --persist --memory-size=${RUNTIME_MEM} --run \
-"echo 'dhcpcd'                                   >init && \
+"echo 'dhcpcd --waitip'                          >init && \
  echo 'export PKG_PATH=${PKG_PATH}'             >>init && \
  . ./init && \
  pkg_add gmake git-base ccache pkg-config meson \