Revert "Revert "Enable named mmap usage on Android""

We have fixed the original problem requiring the revert.

This reverts commit ed7c4d5caf5b53c9358a4a95c0728f46ba7052a4.

Bug: b/171498948
Change-Id: I02afbf9df677f6b691d0929a1f577ff355ef08e8
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/52668
Reviewed-by: Jason Macnak <natsu@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Jason Macnak <natsu@google.com>
Presubmit-Ready: Jason Macnak <natsu@google.com>
Commit-Queue: Jason Macnak <natsu@google.com>
diff --git a/src/Android.bp b/src/Android.bp
index d8d6ee4..22338a1 100644
--- a/src/Android.bp
+++ b/src/Android.bp
@@ -201,6 +201,7 @@
     ],
 
     cflags: [
+        "-DREACTOR_ANONYMOUS_MMAP_NAME=swiftshader_jit",
         "-Wno-unused-parameter",
         "-Wno-implicit-fallthrough",
     ],
@@ -233,6 +234,7 @@
     ],
 
     cflags: [
+        "-DREACTOR_ANONYMOUS_MMAP_NAME=swiftshader_jit",
         "-Wno-unused-parameter",
         "-Wno-implicit-fallthrough",
     ],