USB: OTG: langwell_otg: fix up some sysfs attribute permissions
USB: OTG: langwell_otg: fix up some sysfs attribute permissions

They should not be writable by any user.

Reported-by: Linus Torvalds <69652caca27c8b940640ad396ab71f93cacec34f@linux-foundation.org>
Cc: Hao Wu <34333b65701b1654fdac72fbe9908b53935f3880@intel.com>
Cc: Alan Cox <91e38e63b890fbb214c8914809fde03c73e7f24d@linux.intel.com>
Cc: Alek Du <f955007a45bbce7554bdd01ef2474bb68f93b1ee@intel.com>
Cc: stable <4fbacc2fa0ffdbb11bf1ad6925b886ebd08dd15f@kernel.org>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@suse.de>

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