Add baselines for dftext GM.

expectations/gm/Test-Android-Reference-Unknown-Arm64-Release/expected-results.json

 {
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           16998423976396106083
         ]
       ], 
       "reviewed-by-human": true
@@ skipping 3033 matching lines @@
     }, 
     "deviceproperties_8888.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           14195512172918453244
         ]
       ], 
       "reviewed-by-human": false
     }, 
+    "dftext_gpu.png": {
+      "allowed-digests": [
+        [
+          "bitmap-64bitMD5", 
+          3267278486271418277
+        ]
+      ], 
+      "reviewed-by-human": true
+    }, 
+    "dftext_msaa16.png": {
+      "allowed-digests": [
+        [
+          "bitmap-64bitMD5", 
+          3267278486271418277
+        ]
+      ], 
+      "reviewed-by-human": true
+    }, 
+    "dftext_nvprmsaa4.png": {
+      "allowed-digests": [
+        [
+          "bitmap-64bitMD5", 
+          5234606089072799054
+        ]
+      ], 
+      "reviewed-by-human": true
+    }, 
     "discard_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           11635187478196931850
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "discard_msaa16.png": {
@@ skipping 10209 matching lines @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           10030599291822810250
         ]
       ], 
       "reviewed-by-human": true
     }
   }
 }