fs_parser: remove fs_parameter_description name field

There's a core description struct that links everything together:

	struct fs_parameter_description {

		const char	name[16];

		const struct fs_parameter_spec *specs;

		const struct fs_parameter_enum *enums;

	};

	};

	static const struct fs_parameter_description afs_fs_parameters = {

		.name		= "kAFS",

		.specs		= afs_param_specs,

		.enums		= afs_param_enums,

	};

The members are as follows:

 (1) const char name[16];

     The name to be used in error messages generated by the parse helper

     functions.

 (2) const struct fs_parameter_specification *specs;

 (1) const struct fs_parameter_specification *specs;

     Table of parameter specifications, terminated with a null entry, where the

     entries are of type:

     of arguments to specify the type and the flags for anything that doesn't

     match one of the above macros.

 (6) const struct fs_parameter_enum *enums;

 (2) const struct fs_parameter_enum *enums;

     Table of enum value names to integer mappings, terminated with a null

     entry.  This is of type:

};

static const struct fs_parameter_description spufs_fs_parameters = {

	.name		= "spufs",

	.specs		= spufs_param_specs,

};

};

static const struct fs_parameter_description hypfs_fs_parameters = {

	.name		= "hypfs",

	.specs		= hypfs_param_specs,

};

};

static const struct fs_parameter_description rdt_fs_parameters = {

	.name		= "rdt",

	.specs		= rdt_param_specs,

};

};

static const struct fs_parameter_description rbd_parameters = {

	.name		= "rbd",

	.specs		= rbd_param_specs,

};