Fix vnode locking in fdesc_setattr. Lock vnode before invoking VOP_SETATTR on it.
Fix vnode locking in fdesc_setattr. Lock vnode before invoking
VOP_SETATTR on it.

Approved by:	re@ (rwatson)

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase