Need a new word of AT_SUN_HWCAP bits
We have filled up the first word of AT_SUN_HWCAP bits on x86. This means that we need to plumb up the second word. Thankfully the linker has already done its share of this, but there are small pieces all over the place that also need this information added. The model here is that rather than overloading the AT_SUN_HWCAP, we instead add a new field called AT_SUN_HWCAP2 which the generic kernel passes in. The linker already has support for a new word, it just needs it wired up.