fs/ntfs3: Fix the format of the "nocase" mount option

The 'nocase' option was mistakenly added as fsparam_flag_no
with the 'no' prefix, causing the case-insensitive mode to require
the 'nonocase' option to be enabled.

Fixes: a3a956c7 ("fs/ntfs3: Add option "nocase"")
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

fs/ntfs3/super.c

@@ -275,7 +275,7 @@ static const struct fs_parameter_spec ntfs_fs_parameters[] = {
 	fsparam_flag_no("acl",			Opt_acl),
 	fsparam_string("iocharset",		Opt_iocharset),
 	fsparam_flag_no("prealloc",		Opt_prealloc),
-	fsparam_flag_no("nocase",		Opt_nocase),
+	fsparam_flag_no("case",		Opt_nocase),
 	{}
 };
 // clang-format on