Use slapos.recipe.cmmi new features to detect plaftorm if possible.

component/qemu-kvm/buildout.cfg

@@ -20,7 +20,6 @@ md5sum = b56e73bdcfdb214d5c68e13111aca96f
 depends =
   ${libpng:so_version}
 configure-options =
-  --target-list="x86_64-softmmu i386-softmmu"
   --enable-system
   --with-system-pixman
   --disable-sdl
@@ -41,3 +40,14 @@ environment =
   PATH=${pkgconfig:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${gnutls:location}/lib/pkgconfig:${glib:location}/lib/pkgconfig:${pixman:location}/lib/pkgconfig
   LDFLAGS=-L${pixman:location}/lib -Wl,-rpath=${pixman:location}/lib
+
+[amd64-linux-kvm]
+configure-options =
+  --target-list=x86_64-softmmu
+  ${kvm:configure-options}
+
+[x86-linux-kvm]
+configure-options =
+  --target-list=i386-softmmu
+  ${kvm:configure-options}
+