Use blocklist sub-property in sanitize

Update language to comply with Android’s inclusive language guidance

See https://source.android.com/setup/contribute/respectful-code for
reference

Bug: 161896447
Bug: 162245450

Test: build topic
Change-Id: I952732a034a660a6a6577195d33b2fc2f4f4c78c
diff --git a/libs/androidfw/Android.bp b/libs/androidfw/Android.bp
index eeaefc5..a351437 100644
--- a/libs/androidfw/Android.bp
+++ b/libs/androidfw/Android.bp
@@ -103,7 +103,7 @@
         },
     },
     sanitize: {
-        blacklist: "libandroidfw_blacklist.txt",
+        blocklist: "libandroidfw_blocklist.txt",
     },
 }