misc: Rename misc.(hh|cc) to logging.(hh|cc)

These files aren't a collection of miscellaneous stuff, they're the
definition of the Logger interface, and a few utility macros for
calling into that interface (panic, warn, etc.).

Change-Id: I84267ac3f45896a83c0ef027f8f19c5e9a5667d1
Reviewed-on: https://gem5-review.googlesource.com/6226
Reviewed-by: Brandon Potter <Brandon.Potter@amd.com>
Maintainer: Gabe Black <gabeblack@google.com>

src/base/debug.cc

@@ -37,7 +37,7 @@
 #include <csignal>
 
 #include "base/cprintf.hh"
-#include "base/misc.hh"
+#include "base/logging.hh"
 
 using namespace std;