fs: exfat: This is FS and not drivers

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
Signed-off-by: LaboDJ <jacopolabardi@gmail.com>

(cherry picked from commit efb9b29da53bb2de1856127f62a83433349aa3f8)
fs: exfat: Update to v1.2.5

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>

(cherry picked from commit 663a2eedca8adb606c7899d4d8fe5187aa928693)
fs: exfat: Update to v1.2.9