[android] update Bintray's package name

(cherry picked from commit 3ced4a9)

Author: Łukasz Paczos

platform/android/gradle/artifact-settings.gradle

@@ -14,6 +14,7 @@ ext {
 
     mapboxBintrayUserOrg = 'mapbox'
     mapboxBintrayRepoName = 'mapbox'
+    mapboxBintrayPackageName = 'com.mapbox.mapboxsdk:mapbox-android-sdk'
     mapboxBintrayUser = project.hasProperty('BINTRAY_USER') ? project.property('BINTRAY_USER') : System.getenv('BINTRAY_USER')
     mapboxBintrayApiKey = project.hasProperty('BINTRAY_API_KEY') ? project.property('BINTRAY_API_KEY') : System.getenv('BINTRAY_API_KEY')
     mapboxGpgPassphrase = project.hasProperty('GPG_PASSPHRASE') ? project.property('GPG_PASSPHRASE') : System.getenv('GPG_PASSPHRASE')

platform/android/gradle/gradle-bintray.gradle

@@ -51,7 +51,7 @@ bintray {
     publications = ['MapboxMapsSdkPublication']
     pkg {
         repo = project.ext.mapboxBintrayRepoName
-        name = project.ext.mapboxArtifactId
+        name = project.ext.mapboxBintrayPackageName
         userOrg = project.ext.mapboxBintrayUserOrg
         licenses = [project.ext.mapboxArtifactLicenseName]
         vcsUrl = project.ext.mapboxArtifactVcsUrl