powerpc: Minor cleanups for machdep.h
powerpc: Minor cleanups for machdep.h

Remove stale declaration of setup_pci_ptrs, aparently from ppc before 2.4.0

Remove #ifdef around struct existance delcaration

Fix spelling of "linear"

Signed-off-by: Milton Miller <8bd50e0fc26e21e23b28837d9acdf866b237c39d@bga.com>
Signed-off-by: Sonny Rao <d867fc987a366be56684d1145622524a3ba1efbf@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <a7089bb6e7e92505d88aaff006cbdd60cc9120b6@kernel.crashing.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs