tinycompress: Conditionally enable extended compress format

Change-Id: Iac589fcc06bd7cea544475f7d82eaf4af8af2348
diff --git a/Android.bp b/Android.bp
index e79b204..940855c 100644
--- a/Android.bp
+++ b/Android.bp
@@ -20,6 +20,13 @@
     header_libs: [
         "generated_kernel_headers",
     ],
+    product_variables: {
+        bliss: {
+            supports_extended_compress_format: {
+                cflags: ["-DENABLE_EXTENDED_COMPRESS_FORMAT"],
+            },
+        },
+    },
 }
 
 cc_binary {