sh: CMT platform data for sh7720/sh7721

This patch adds CMT platform data for sh7720 and sh7721.
All 5 32-bit CMT channels unfortunately share a single IRQ.
Both clockevent and clocksource support is enabled.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index a9dee13..5391746 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -302,6 +302,7 @@
 	bool "Support SH7720 processor"
 	select CPU_SH3
 	select CPU_HAS_DSP
+	select SYS_SUPPORTS_CMT
 	help
 	  Select SH7720 if you have a SH3-DSP SH7720 CPU.
 
@@ -309,6 +310,7 @@
 	bool "Support SH7721 processor"
 	select CPU_SH3
 	select CPU_HAS_DSP
+	select SYS_SUPPORTS_CMT
 	help
 	  Select SH7721 if you have a SH3-DSP SH7721 CPU.