Switch jemalloc to jemalloc5

Test: OUT_DIR=out prebuilts/build-tools/build-prebuilts.sh
Change-Id: I0eb19ec95caa14b14cc417f77595d345bf0df19b
diff --git a/Android.bp b/Android.bp
index 7f14db6..65358e4 100644
--- a/Android.bp
+++ b/Android.bp
@@ -89,7 +89,7 @@
     // jemalloc can improve the overall runtime by 10x vs the default allocator.
     target: {
         linux_glibc: {
-            shared_libs: ["libjemalloc"],
+            shared_libs: ["libjemalloc5"],
         },
     },
 }