Allow all font weights on Android and respect overrides.

expectations/gm/Test-Android-Nexus10-MaliT604-Arm7-Debug/expected-results.json

 {
   "actual-results": {
     "failed": null, 
     "failure-ignored": null, 
     "no-comparison": null, 
     "succeeded": null
   }, 
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
@@ skipping 6191 matching lines @@
           "bitmap-64bitMD5", 
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         ]
       ], 
       "reviewed-by-human": true
     }, 
     "fontmgr_iter_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
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+          15535368433031718847
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       ], 
       "reviewed-by-human": true
     }, 
     "fontmgr_iter_8888.png": {
       "allowed-digests": [
         [
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       ], 
       "reviewed-by-human": true
     }, 
     "fontmgr_iter_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           1857288326388942863
         ]
@@ skipping 7015 matching lines @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           10584725278684600171
         ]
       ], 
       "reviewed-by-human": true
     }
   }
 }