gradtext also needed rebaselining from the gamma change

expectations/gm/Test-Android-Nexus4-Adreno320-Arm7-Release/expected-results.json

 {
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           16998423976396106083
         ]
       ], 
       "bugs": [
@@ skipping 5741 matching lines @@
           "bitmap-64bitMD5", 
           9805842470726753368
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "gradtext_8888.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          12332797412638201498
+          5771478138095675386
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "gradtext_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          11170232646750428570
+          15574593963961481812
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "hairlines_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           3746404902639900755
         ]
@@ skipping 3776 matching lines @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           16748320297859630449
         ]
       ], 
       "reviewed-by-human": true
     }
   }
 }