libutils: use log/log.h internally

utils/Log.h is one less file we need if we're
splitting up this library for binder.

Bug: 302720583
Test: build
Change-Id: Ibc7ec5402df342627f465354d7cf59e98f450a31
diff --git a/libutils/FileMap.cpp b/libutils/FileMap.cpp
index 0abb861..3acbce9 100644
--- a/libutils/FileMap.cpp
+++ b/libutils/FileMap.cpp
@@ -21,7 +21,7 @@
 #define LOG_TAG "filemap"
 
 #include <utils/FileMap.h>
-#include <utils/Log.h>
+#include <log/log.h>
 
 #if defined(__MINGW32__) && !defined(__USE_MINGW_ANSI_STDIO)
 # define PRId32 "I32d"