staging: rtl8192e: rename enum members to upper case

staging: rtl8192e: rename enum members to upper case

Enum members are usually named all upper case. Rename the members of
the enum fsync_state to improve readability and follow the common kernel
coding style.

Default_Fsync -> DEFAULT_FSYNC
HW_Fsync -> HW_FSYNC
SW_Fsync -> SW_FSYNC

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/20240222112723.18428-4-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>