[fontdata] Font metadata fixes

Bug: 8880
Bug: 35895
Bug: 39586
Change-Id: Ic25e7407eccb6dda60417e58881b329bf3c9b488
diff --git a/fuchsia.font_catalog.json b/fuchsia.font_catalog.json
index e9712d8..b9ff885 100644
--- a/fuchsia.font_catalog.json
+++ b/fuchsia.font_catalog.json
@@ -69,7 +69,7 @@
           ]
         },
         {
-          "file_name": "DroidSans.ttf",
+          "file_name": "DroidSans-Regular.ttf",
           "typefaces": [
             {}
           ]
@@ -83,7 +83,7 @@
       "generic_family": "monospace",
       "assets": [
         {
-          "file_name": "DroidSansMono.ttf",
+          "file_name": "DroidSansMono-Regular.ttf",
           "typefaces": [
             {}
           ]
@@ -131,7 +131,7 @@
       "generic_family": "sans-serif",
       "assets": [
         {
-          "file_name": "NanumGothic.ttf",
+          "file_name": "NanumGothic-Regular.ttf",
           "typefaces": [
             {
               "languages": [