Fixed the issue due to which js assets are not bundled in the apk when separate build for different CPU architectures is enabled

Summary:
This PR tries to fix a minor bug in `react.gradle` due to which task that bundles JS into the assets folder of the APK is not run when separate build per CPU architecture is enabled and we are using different product flavors.
Closes facebook#8675

Differential Revision: D3541348

fbshipit-source-id: 4c84f21a06a45046f84bdd8ae5c5d834ec080476

Author: Ritesh Kadmawala

react.gradle

@@ -31,7 +31,9 @@ gradle.projectsEvaluated {
     productFlavors.each { productFlavorName ->
         buildTypes.each { buildTypeName ->
             // Create variant and target names
-            def targetName = "${productFlavorName.capitalize()}${buildTypeName.capitalize()}"
+            def flavorNameCapitalized = "${productFlavorName.capitalize()}"
+            def buildNameCapitalized = "${buildTypeName.capitalize()}"
+            def targetName = "${flavorNameCapitalized}${buildNameCapitalized}"
             def targetPath = productFlavorName ?
                     "${productFlavorName}/${buildTypeName}" :
                     "${buildTypeName}"
@@ -92,8 +94,8 @@ gradle.projectsEvaluated {
             currentBundleTask.dependsOn("merge${targetName}Resources")
             currentBundleTask.dependsOn("merge${targetName}Assets")
 
-            runBefore("processArmeabi-v7a${targetName}Resources", currentBundleTask)
-            runBefore("processX86${targetName}Resources", currentBundleTask)
+            runBefore("process${flavorNameCapitalized}Armeabi-v7a${buildNameCapitalized}Resources", currentBundleTask)
+            runBefore("process${flavorNameCapitalized}X86${buildNameCapitalized}Resources", currentBundleTask)
             runBefore("processUniversal${targetName}Resources", currentBundleTask)
             runBefore("process${targetName}Resources", currentBundleTask)
         }