sh: Add SH7720 CPU support.

This adds support for the SH7720 (SH3-DSP) CPU.

Signed-off by: Markus Brunner <super.firetwister@gmail.com>
Signed-off by: Mark Jonas <toertel@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/kernel/timers/timer-tmu.c b/arch/sh/kernel/timers/timer-tmu.c
index 8a545d5..628ec9a 100644
--- a/arch/sh/kernel/timers/timer-tmu.c
+++ b/arch/sh/kernel/timers/timer-tmu.c
@@ -173,7 +173,8 @@
 
 	tmu_timer_stop();
 
-#if !defined(CONFIG_CPU_SUBTYPE_SH7760) && \
+#if !defined(CONFIG_CPU_SUBTYPE_SH7720) && \
+    !defined(CONFIG_CPU_SUBTYPE_SH7760) && \
     !defined(CONFIG_CPU_SUBTYPE_SH7785) && \
     !defined(CONFIG_CPU_SUBTYPE_SHX3)
 	ctrl_outb(TMU_TOCR_INIT, TMU_TOCR);