sparc64: nr_cpus and nodes_shift

sparc64: nr_cpus and nodes_shift

This is being done for M5 and the like.

To go beyond the NR_CPUS limit of 4064, the issue in cpu mondo -
init_cpu_send_mondo_info - needs to be addressed and appears possible.

Orabug: 23128525

Signed-off-by: Bob Picco <bob.picco@oracle.com>
Signed-off-by: Allen Pais <allen.pais@oracle.com>
(cherry picked from commit d8ce9cc00181bfa65865c6d1624f0dcb3d048a7b)
(cherry picked from commit ce753fe5d10682939912242c9880935472f1e195)

Conflicts:
	arch/sparc/Kconfig

Signed-off-by: Allen Pais <allen.pais@oracle.com>
(cherry picked from commit 48df0cc664ddfb2f03dc1afbb3ff01a3192c9723)
(cherry picked from commit fdb632ef6a250d24887003cc35b72744183c8642)