MN10300: Make the use of PIDR to mark TLB entries controllable

Make controllable the use of the PIDR register to mark TLB entries as belonging
to particular processes.

Signed-off-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com>
Signed-off-by: Kiyoshi Owada <owada.kiyoshi@jp.panasonic.com>
Signed-off-by: David Howells <dhowells@redhat.com>
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index dd7b570..7bd920b 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -142,6 +142,9 @@
 
 source "arch/mn10300/mm/Kconfig.cache"
 
+config MN10300_TLB_USE_PIDR
+	def_bool y
+
 menu "Memory layout options"
 
 config KERNEL_RAM_BASE_ADDRESS