parisc: factor out sid to protid conversion
parisc: factor out sid to protid conversion

Create a new __space_to_prot inline to convert the space id (mmu context)
to a protection id. Sadly it doesn't look like the #ifdef can be eliminated
since relying on the compiler to not truncate a bit on
	return (ctx >> SPACEID_SHIFT) << 1;
seems a little dodgy.

Signed-off-by: Kyle McMartin <3c25b01657254677d3e1a8fd1f0742c5d489bd39@mcmartin.ca>

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