Update expectations for etc1bitmap

expectations/gm/Test-ChromeOS-Link-HD4000-x86_64-Release/expected-results.json

 {
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           12831071530564277917
         ]
       ], 
       "bugs": [
@@ skipping 2915 matching lines @@
         [
           "bitmap-64bitMD5", 
           4888438410661494940
         ]
       ], 
       "bugs": [
         1578
       ], 
       "reviewed-by-human": false
     }, 
+    "etc1bitmap_565.png": {
+      "allowed-digests": [
+        [
+          "bitmap-64bitMD5", 
+          15855537393781495131
+        ]
+      ], 
+      "reviewed-by-human": true
+    }, 
+    "etc1bitmap_8888.png": {
+      "allowed-digests": [
+        [
+          "bitmap-64bitMD5", 
+          10396043285211938891
+        ]
+      ], 
+      "reviewed-by-human": true
+    }, 
     "extractbitmap_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           11559795738519917215
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "extractbitmap_8888.png": {
@@ skipping 3642 matching lines @@
           2149562185397201955
         ]
       ], 
       "bugs": [
         1578
       ], 
       "reviewed-by-human": false
     }
   }
 }