[sg fromlist] fat_fs: Add reentrant zephyr support

This commit enables zephyr to configure the FatFs FF_FS_REENTRANT
option and support fs actions from multiple threads.
CONFIG_FS_FATFS_REENTRANT enables the option and provides zephyr
mutex wrappers.

R2D2-8240 FS reentrant
zephyrproject-rtos#51484

Signed-off-by: Nicola Ochsenbein <[email protected]>
(cherry picked from commit 67e7e5b)

Author: Ox11

subsys/fs/Kconfig.fatfs

@@ -155,6 +155,11 @@ config FS_FATFS_WINDOW_ALIGNMENT
 	  that, in worst scenario, value provided here may cause FATFS
 	  structure to have size of twice the value
 
+config FS_FATFS_REENTRANT
+	bool "FatFs reentrant"
+	help
+	  Enable the re-entrancy (thread safe) option of the FatFs
+
 endmenu
 
 endif # FAT_FILESYSTEM_ELM

west.yml

@@ -42,7 +42,7 @@ manifest:
       groups:
         - tools
     - name: fatfs
-      revision: a30531af3a95a9a3ea7d771ea8a578ebfed45514
+      revision: 44c0080876f28a193085078c7381908f7fbc1bbc
       path: modules/fs/fatfs
       groups:
         - fs