Add SkSVGFeMerge.h to public.bzl

Follow-up to http://review.skia.org/823896

Change-Id: Ida1571a9da8895b386d90185a1bf323a798eb813
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/852016
Commit-Queue: Florin Malita <fmalita@google.com>
Reviewed-by: Florin Malita <fmalita@google.com>
diff --git a/public.bzl b/public.bzl
index 0294362..b03b2b5 100644
--- a/public.bzl
+++ b/public.bzl
@@ -2676,11 +2676,12 @@
     "modules/svg/include/SkSVGFeImage.h",
     "modules/svg/include/SkSVGFeLighting.h",
     "modules/svg/include/SkSVGFeLightSource.h",
+    "modules/svg/include/SkSVGFeMerge.h",
     "modules/svg/include/SkSVGFeMorphology.h",
     "modules/svg/include/SkSVGFeOffset.h",
     "modules/svg/include/SkSVGFeTurbulence.h",
-    "modules/svg/include/SkSVGFilterContext.h",
     "modules/svg/include/SkSVGFilter.h",
+    "modules/svg/include/SkSVGFilterContext.h",
     "modules/svg/include/SkSVGG.h",
     "modules/svg/include/SkSVGGradient.h",
     "modules/svg/include/SkSVGHiddenContainer.h",