powerpc: Mark memory_limit as initdata

The `memory_limit` variable should only be used during boot, enforce
that by marking it initdata.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240422115231.1769984-1-mpe@ellerman.id.au
This commit is contained in:
Michael Ellerman 2024-04-22 21:52:31 +10:00
commit 236a4c6349