sh: timer rewrite, sh7723 support

From: Magnus Damm <[email protected]>

Add CMT and TMU devices and use the new timer code on sh7723.

---

 arch/sh/Kconfig                        |    1 
 arch/sh/kernel/cpu/sh4a/setup-sh7723.c |   73 ++++++++++++++++++++++++++++++++
 2 files changed, 74 insertions(+)

@@ -311,6 +311,7 @@ config CPU_SUBTYPE_SH7723
 	select CPU_SH4A
 	select CPU_SHX2
 	select ARCH_SPARSEMEM_ENABLE
+	select SH_TIMER
 	help
 	  Select SH7723 if you have an SH-MobileR2 CPU.