It makes more sense to have all the buffer object related code in
a single file rather than splitting it up between the resource code
and buffer object pinning utilities.

Place all buffer object related code in vmwgfx_bo.c. Fix up headers
and export resource functionality when needed in the buffer object
code.
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NBrian Paul <brianp@vmware.com>
Reviewed-by: NSinclair Yeh <syeh@vmware.com>
Reviewed-by: NDeepak Rawat <drawat@vmware.com>