[PATCH] TOMOYO: fix __setup handlers return values

[Tetsuo Handa]

On 2022/02/23 6:45, Randy Dunlap wrote:
> __setup() handlers should return 1 if the parameter is handled.
> Returning 0 causes the entire string to be added to init's
> environment strings (limited to 32 strings), unnecessarily polluting it.

Applied as https://osdn.net/projects/tomoyo/scm/git/tomoyo-test1/commits/39844b7e3084baecef52d1498b5fa81afa2cefa9 .

Thank you.