Hi all,


This fixes a bug where where if sis fb is not set and sis drm is
selected then there will be undefined references to sis_malloc() and
sis_free().

What I've done is a sort of a bandaid because I don't have hardware
to fix and test. 


	-- G.
-- 
char p[] = "\xeb\x1f\x5e\x89\x76\x08\x31\xc0\x88\x46\x07\x89\x46\x0c\xb0\x0b"
  "\x89\xf3\x8d\x4e\x08\x8d\x56\x0c\xcd\x80\x31\xdb\x89\xd8\x40\xcd"
  "\x80\xe8\xdc\xff\xff\xff/bin/sh";