arch/sh: hyphenate Non-Uniform in Kconfig prompt

Hyphenate Non-Uniform in the NUMA kconfig prompt.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: linux-sh@vger.kernel.org
Cc: Jiri Kosina <trivial@kernel.org>
Signed-off-by: Rich Felker <dalias@libc.org>