x86, uv, uv3: Check current gru hub support for SGI UV3
x86, uv, uv3: Check current gru hub support for SGI UV3

This patch checks current hub support to avoid panicing the
system until all the GRU changes for UV3+ are in place.

Signed-off-by: Mike Travis <e6cc0fb2b8dad4110ef62e9a33e5a8aa4e0f86d7@sgi.com>
Link: a2f993982fe89be3b25e34b801a6ad082a0103d7@gulag1.americas.sgi.com
Acked-by: Dimitri Sivanich <eb9314cd9fb6c9c1ab10792809da7e2f4af25acd@sgi.com>
Signed-off-by: H. Peter Anvin <8a453bad9912ffe59bc0f0b8abe03df9be19379e@linux.intel.com>

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