[gimp] plug-ins: updating deprecated enum names from libheif.

[Jehan <jehanp src gnome org>]

commit b1133ef8662426f6f00d31781936f05a99b44fec
Author: Jehan <jehan girinstud io>
Date:   Mon Apr 1 15:38:27 2019 +0200

    plug-ins: updating deprecated enum names from libheif.

 plug-ins/common/file-heif.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/plug-ins/common/file-heif.c b/plug-ins/common/file-heif.c
index bfef48abbc..6617ff3865 100644
--- a/plug-ins/common/file-heif.c
+++ b/plug-ins/common/file-heif.c
@@ -687,8 +687,8 @@ save_image (GFile             *file,
   err = heif_image_create (width, height,
                            heif_colorspace_RGB,
                            has_alpha ?
-                           heif_chroma_interleaved_32bit :
-                           heif_chroma_interleaved_24bit,
+                           heif_chroma_interleaved_RGBA :
+                           heif_chroma_interleaved_RGB,
                            &image);
 
   if (profile)