always set copytoram for pxe boot via http

Signed-off-by: Christian Hesse <mail@eworm.de>

archiso/initcpio/hooks/archiso_pxe_http

@@ -3,6 +3,10 @@
 run_hook() {
     if [[ -n "${ip}" && -n "${archiso_http_srv}" ]]; then
 
+        # booting with http is always copy-to-ram, so set here to make sure
+        # addresses are flushed and interface is set down
+        copytoram="y"
+
         archiso_http_srv=$(eval echo ${archiso_http_srv})
         [[ -z "${archiso_http_spc}" ]] && archiso_http_spc="75%"