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/CallStack.cpp b/libutils/CallStack.cpp
index 11f2c92..fe827eb 100644
--- a/libutils/CallStack.cpp
+++ b/libutils/CallStack.cpp
@@ -18,7 +18,7 @@
 
 #include <utils/Printer.h>
 #include <utils/Errors.h>
-#include <utils/Log.h>
+#include <log/log.h>
 
 #include <unwindstack/AndroidUnwinder.h>