cleanup: include/: move disk_access.h to disk/disk_access.h

move disk_access.h to disk/disk_access.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

subsys/disk/disk_access.c

@@ -9,7 +9,7 @@
 #include <misc/__assert.h>
 #include <misc/util.h>
 #include <init.h>
-#include <disk_access.h>
+#include <disk/disk_access.h>
 #include <errno.h>
 #include <device.h>
 

subsys/disk/disk_access_flash.c

@@ -8,7 +8,7 @@
 #include <zephyr/types.h>
 #include <misc/__assert.h>
 #include <misc/util.h>
-#include <disk_access.h>
+#include <disk/disk_access.h>
 #include <errno.h>
 #include <init.h>
 #include <device.h>

subsys/disk/disk_access_ram.c

@@ -7,7 +7,7 @@
 #include <string.h>
 #include <zephyr/types.h>
 #include <misc/__assert.h>
-#include <disk_access.h>
+#include <disk/disk_access.h>
 #include <errno.h>
 #include <init.h>
 #include <device.h>

subsys/disk/disk_access_sdhc.c

@@ -8,7 +8,7 @@
 
 LOG_MODULE_REGISTER(sdhc, CONFIG_DISK_LOG_LEVEL);
 
-#include <disk_access.h>
+#include <disk/disk_access.h>
 #include <gpio.h>
 #include <misc/byteorder.h>
 #include <spi.h>