E7501 support in V2

[YhLu]

Eric,

I finish the translate raminit.inc to E7501. But in compiling stage, it used
up the regs.

In the K8, there is enable_mmx_sse.inc to enable cpu access more regs for
romcc.

So the problem is
1. Can I use the enable_mmx_sse.inc for Xeon without change? It has MMX and
sse too.

2. how about the romcc cpu flag. Or just use -mcpu=k8?

Regards

YH