Enable libpcre2 on linux_bionic builds

Bug: 31559095
Test: Enable host bionic, run soong
Change-Id: I22034ecc8bd66dfc4915c275ab0bee81998dcc19
diff --git a/Android.bp b/Android.bp
index 1bd3b24..6f5f6f4 100644
--- a/Android.bp
+++ b/Android.bp
@@ -46,6 +46,11 @@
     defaults: ["pcre_defaults"],
     host_supported: true,
     srcs: libpcre2_src_files,
+    target: {
+        linux_bionic: {
+            enabled: true,
+        },
+    },
 }
 
 // === libpcrecpp targets ===