[PATCH 3/4] configure: accept --enable-slirp

[Paolo Bonzini]

Meson understands -Dslirp=enabled, so there is no reason not to
accept the configure option as well.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 configure | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/configure b/configure
index 18af8207d9..568818e72d 100755
--- a/configure
+++ b/configure
@@ -1083,6 +1083,8 @@ for opt do
   ;;
   --disable-slirp) slirp="disabled"
   ;;
+  --enable-slirp) slirp="enabled"
+  ;;
   --enable-slirp=git) slirp="internal"
   ;;
   --enable-slirp=system) slirp="system"
-- 
2.29.2