USB: HSO: make tty_operations const
USB: HSO: make tty_operations const

As recommended by Arjan.

Cc: Arjan van de Ven <9043bf4b08f6c93a2cb55d98c3494b123858348f@infradead.org>
Cc: Andrew Bird <0b305cf4b094d91e2a96dc79716722da3c21f5b0@spheresystems.co.uk>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@suse.de>
Signed-off-by: Jeff Garzik <15f615bf7d20c2937c7eb5aa759110fd6768848c@redhat.com>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas