Rename "headers/private/utils" to "util".

This undoes some changes from cf930b7e6c.

Nearly all the other utility directories in the tree are named "util"
not "utils", so let's be consistent.

src/add-ons/input_server/devices/mouse/movement_maker.cpp

@@ -23,7 +23,7 @@
 #include <stdlib.h>
 #include <math.h>
 
-#include <private/utils/BitUtils.h>
+#include <util/BitUtils.h>
 
 //#define TRACE_MOVEMENT_MAKER
 

src/add-ons/kernel/busses/scsi/ahci/ahci_controller.cpp

@@ -11,8 +11,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <new>
-
+#include <util/BitUtils.h>
-#include <utils/BitUtils.h>
 
 #define TRACE(a...) dprintf("ahci: " a)
 #define FLOW(a...)	dprintf("ahci: " a)

src/add-ons/kernel/file_systems/ramfs/DataContainer.cpp

@@ -8,12 +8,11 @@
 
 #include <StackOrHeapArray.h>
 #include <util/AutoLock.h>
+#include <util/BitUtils.h>
 #include <slab/Slab.h>
 #include <thread.h>
 #include <vfs.h>
 
-#include <utils/BitUtils.h>
-
 #include <vm/VMCache.h>
 #include <vm/vm_page.h>
 #include "VMAnonymousNoSwapCache.h"

src/libs/compat/freebsd_network/malloc.cpp

@@ -11,7 +11,7 @@ extern "C" {
 #include <stdio.h>
 #include <string.h>
 
-#include <utils/BitUtils.h>
+#include <util/BitUtils.h>
 
 #include <kernel/heap.h>
 #include <kernel/vm/vm.h>

src/system/kernel/arch/x86/arch_cpu.cpp

@@ -26,12 +26,11 @@
 #include <elf.h>
 #include <safemode.h>
 #include <smp.h>
+#include <util/BitUtils.h>
 #include <vm/vm.h>
 #include <vm/vm_types.h>
 #include <vm/VMAddressSpace.h>
 
-#include <utils/BitUtils.h>
-
 #include <arch_system_info.h>
 #include <arch/x86/apic.h>
 #include <boot/kernel_args.h>

src/system/kernel/util/Bitmap.cpp

@@ -11,7 +11,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include <utils/BitUtils.h>
+#include <util/BitUtils.h>
 
 
 namespace BKernel {

src/system/kernel/vm/vm.cpp

@@ -47,6 +47,7 @@
 #include <team.h>
 #include <tracing.h>
 #include <util/AutoLock.h>
+#include <util/BitUtils.h>
 #include <util/ThreadAutoLock.h>
 #include <vm/vm_page.h>
 #include <vm/vm_priv.h>
@@ -54,8 +55,6 @@
 #include <vm/VMArea.h>
 #include <vm/VMCache.h>
 
-#include <utils/BitUtils.h>
-
 #include "VMAddressSpaceLocking.h"
 #include "VMAnonymousCache.h"
 #include "VMAnonymousNoSwapCache.h"