powerpc/prom_init: Move ibm_arch_vec to __prombss

Make the existing initialized definition constant and copy
it to a __prombss copy

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Benjamin Herrenschmidt 2018-10-15 13:49:55 +11:00 • committed by Michael Ellerman
commit a614f52e75