ARM: mach-shmobile: sh7372 D4 support

Add support for the sh7372 D4 power domain. This power domain
contains the Coresight-ETM hardware block.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
diff --git a/arch/arm/mach-shmobile/pm-sh7372.c b/arch/arm/mach-shmobile/pm-sh7372.c
index f3bd95f..a8e0de1 100644
--- a/arch/arm/mach-shmobile/pm-sh7372.c
+++ b/arch/arm/mach-shmobile/pm-sh7372.c
@@ -129,6 +129,10 @@
 	.bit_shift = 2,
 };
 
+struct sh7372_pm_domain sh7372_d4 = {
+	.bit_shift = 3,
+};
+
 struct sh7372_pm_domain sh7372_a3rv = {
 	.bit_shift = 6,
 };