fix android-build.sh script

Author: programmerjake

android-build.sh

@@ -37,10 +37,10 @@ popd > /dev/null
 BUILD_PATH="$PROJECT_PATH/build-android"
 rm -rf "$BUILD_PATH"
 EXTERNAL_PATH="$PROJECT_PATH/external-lib"
-SDL_PATH="$EXTERNAL_PATH/SDL2-2.0.3"
-LIBPNG_PATH="$EXTERNAL_PATH/libpng-1.6.18"
-LIBOGG_PATH="$EXTERNAL_PATH/libogg-1.3.2"
-LIBVORBIS_PATH="$EXTERNAL_PATH/libvorbis-1.3.5"
+SDL_PATH="$EXTERNAL_PATH/SDL"
+LIBPNG_PATH="$EXTERNAL_PATH/libpng"
+LIBOGG_PATH="$EXTERNAL_PATH/ogg"
+LIBVORBIS_PATH="$EXTERNAL_PATH/vorbis"
 OPENSSL_PATH="$EXTERNAL_PATH/android-external-openssl"
 RESOURCES_PATH="$PROJECT_PATH/res"
 NCPUS="1"