arm64: kconfig: increase NR_CPUS range to 2-4096.

Raise the maximum CPU limit to 4096 in preparation for upcoming
platforms with large core counts.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index c102d92..02f67a9 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -455,8 +455,8 @@
 	  places. If unsure say N here.
 
 config NR_CPUS
-	int "Maximum number of CPUs (2-64)"
-	range 2 64
+	int "Maximum number of CPUs (2-4096)"
+	range 2 4096
 	depends on SMP
 	# These have to remain sorted largest to smallest
 	default "64"