In Android framework, make tools depend on jsoncpp

gyp/bench.gyp

 # GYP file to build performance testbench.
 #
 {
   'includes': [
     'apptype_console.gypi',
   ],
   'targets': [
     {
       'target_name': 'bench',
       'type': 'executable',
@@ skipping 21 matching lines @@
             ],
             'dependencies': [
               'gputest.gyp:skgputest',
             ],
           },
         ],
         ['skia_android_framework == 1',
           {
             'libraries': [
               '-lskia',
+              'jsoncpp.a',
             ],
           },
         ],
       ],
       'includes': [
         'bench.gypi',
         'gmslides.gypi',
       ],
     },
     {
@@ skipping 49 matching lines @@
         ['skia_gpu == 1', {
           'sources': [
             '../bench/BenchGpuTimer_gl.h',
             '../bench/BenchGpuTimer_gl.cpp',
           ],
         }],
       ],
     }
   ],
 }