Setting I&D cache enable in the same mtspr instruction

[Roger Larsson]

Is the patch reversed?

diff -Naur old new > patch

And what about comments, are they all still valid?
"enable and invalidate caches" is now only Data cache...

In cases when I am writing code like this I try to
include the reason why it is not "optimized" together
in one write... (or soon someone will do that optimization).

/RogerL