Minor tweak for compatibility with BSD: Use MAP_ANON instead of MAP_ANONYMOUS.

The former is deprecated on Linux, but it is equivalent, and
MAP_ANONYMOUS isn't valid at all on BSD. (The alternative for BSD
compatibility is to use #ifdefs, but that seems gratuitously
heavyweight to me.)

Change-Id: I9c0b2cc78c4d7edc633487d5b0dde5b2f928247e
diff --git a/vm/compiler/Compiler.c b/vm/compiler/Compiler.c
index 074830f..9db641e 100644
--- a/vm/compiler/Compiler.c
+++ b/vm/compiler/Compiler.c
@@ -163,7 +163,7 @@
     /* Allocate the code cache */
     gDvmJit.codeCache = mmap(0, CODE_CACHE_SIZE,
                           PROT_READ | PROT_WRITE | PROT_EXEC,
-                          MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+                          MAP_PRIVATE | MAP_ANON, -1, 0);
     if (gDvmJit.codeCache == MAP_FAILED) {
         LOGE("Failed to create the code cache: %s\n", strerror(errno));
         return false;