The module load address always needs to be included when setting the dm_*_va
fields of dt_module_t. Previously, this was only done on architectures where
kernel modules have type ET_REL; this change fixes that. As a result, symbol
name resolution in the stack() action now works properly for kernel modules
on i386.

Reported by: Shrikanth Kamath <shrikanth07@gmail.com>
Tested by: Shrikanth Kamath
Discussed with: avg
MFC after: 2 weeks