Update fontcache expectations

expectations/gm/Test-Android-Nexus5-Adreno330-Arm7-Debug/expected-results.json

 {
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           16998423976396106083
         ]
       ], 
       "bugs": [
@@ skipping 4796 matching lines @@
           "bitmap-64bitMD5", 
           1993355360238974511
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "fontcache_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          15147463239787661010
+          1576190572459616237
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "fontmgr_iter_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           5363798543478698363
         ]
@@ skipping 5424 matching lines @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           7017362768546994774
         ]
       ], 
       "reviewed-by-human": true
     }
   }
 }