[SCSI] initialize shost_data to zero
[SCSI] initialize shost_data to zero

It's better to initialize host->shost_data to zero like
target->starget_data and device->sdev_data.

Signed-off-by: FUJITA Tomonori <93dac1fe9c4b2a3957982200319981492ad4976e@lab.ntt.co.jp>
Signed-off-by: James Bottomley <407b36959ca09543ccda8f8e06721c791bc53435@SteelEye.com>

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