vendor: build LineageBlackTheme

Change-Id: Icb14d865e3e4a1dc649599dd595adc8cd22cfb94
diff --git a/config/bliss_packages.mk b/config/bliss_packages.mk
index 1ecc7e0..7b32912 100644
--- a/config/bliss_packages.mk
+++ b/config/bliss_packages.mk
@@ -95,4 +95,5 @@
 # Themes
 PRODUCT_PACKAGES += \
     LineageThemesStub \
+    LineageBlackTheme \
     ThemePicker