Stop including qemu-common.h in memory.h

Including qemu-common.h from other header files is generally a bad
idea, because it means it's very easy to end up with a circular
dependency. For instance, if we wanted to include memory.h from
qom/cpu.h we'd end up with this loop:
memory.h -> qemu-common.h -> cpu.h -> cpu-qom.h -> qom/cpu.h -> memory.h

Remove the include from memory.h. This requires us to fix up a few
other files which were inadvertently getting declarations indirectly
through memory.h.

The biggest change is splitting the fprintf_function typedef out
into its own header so other headers can get at it without having
to include qemu-common.h.

Backports commit fba0a593b2809ecdda68650952cf3d3332ac1990 from qemu

qemu/include/exec/cpu-common.h

@@ -11,6 +11,8 @@ struct uc_struct;
 
 #include "qemu/bswap.h"
 #include "qemu/queue.h"
+#include "qemu/fprintf-fn.h"
+#include "qemu/typedefs.h"
 
 typedef enum MMUAccessType {
     MMU_DATA_LOAD  = 0,

qemu/include/exec/memory.h

@@ -20,7 +20,6 @@
 #define DIRTY_MEMORY_NUM       1        /* num of dirty bits */
 
 #include "unicorn/platform.h"
-#include "qemu-common.h"
 #include "exec/cpu-common.h"
 #include "exec/hwaddr.h"
 #include "exec/memattrs.h"