spapr: Clean up local variable shadowing in spapr_init_cpus()

spapr: Clean up local variable shadowing in spapr_init_cpus()

Remove extra 'i' variable to fix this warning :

  ../hw/ppc/spapr.c: In function ‘spapr_init_cpus’:
  ../hw/ppc/spapr.c:2668:13: warning: declaration of ‘i’ shadows a previous local [-Wshadow=compatible-local]
   2668 |         int i;
        |             ^
  ../hw/ppc/spapr.c:2645:9: note: shadowed declaration is here
   2645 |     int i;
        |         ^

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20230918145850.241074-5-clg@kaod.org>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>