Update ccache config (#298)

MapboxGLAndroidSDK/build.gradle

@@ -34,11 +34,6 @@ android {
         buildConfigField "String", "MAPBOX_VERSION_STRING", String.format("\"Mapbox/%s\"", project.VERSION_NAME)
         buildConfigField "String", "MAPBOX_EVENTS_USER_AGENT", String.format("\"mapbox-maps-android/%s\"", project.VERSION_NAME)
         consumerProguardFiles 'proguard-rules.pro'
-        externalNativeBuild {
-            cmake {
-                arguments '-DANDROID_CCACHE=ccache'
-            }
-        }
     }
 
     // build native libraries

gradle/native-build.gradle

@@ -44,6 +44,8 @@ ext.nativeBuild = { nativeTargets ->
                         // Enable ccache if the user has installed it.
                         if (file("/usr/bin/ccache").exists()) {
                             arguments "-DANDROID_CCACHE=/usr/bin/ccache"
+                        } else if (file("/usr/local/bin/ccache").exists()) {
+                            arguments "-DANDROID_CCACHE=/usr/local/bin/ccache"
                         }
 
                         cFlags "-Qunused-arguments"