Added patch for fix build problems with rust cheddar package

build-1360521-missing-cheddar.patch

@@ -0,0 +1,13 @@
+diff --git a/mozilla-release/media/libstagefright/binding/mp4parse_capi/Cargo.toml b/mozilla-release/media/libstagefright/binding/mp4parse_capi/Cargo.toml
+index aee7ee9471..d7e3f55119 100644
+--- a/mozilla-release/media/libstagefright/binding/mp4parse_capi/Cargo.toml
++++ b/mozilla-release/media/libstagefright/binding/mp4parse_capi/Cargo.toml
+@@ -18,6 +18,8 @@ exclude = [
+   "*.mp4",
+ ]
+
++build = false
++
+ [dependencies]
+ byteorder = "1.0.0"
+ "mp4parse" = {version = "0.6.0", path = "../mp4parse"}

firefox.spec

@@ -140,6 +140,7 @@ Patch20:        firefox-build-prbool.patch
 Patch25:        rhbz-1219542-s390-build.patch
 Patch26:        build-icu-big-endian.patch
 Patch27:        mozilla-1335250.patch
+Patch28:        build-1360521-missing-cheddar.patch
 
 # Fedora specific patches
 # Unable to install addons from https pages
@@ -310,6 +311,7 @@ cd %{tarballdir}
 %patch25 -p1 -b .rhbz-1219542-s390
 %endif
 %patch27 -p1 -b .1335250
+%patch28 -p2 -b .1360521-missing-cheddar
 
 %patch3  -p1 -b .arm