sh: add platform_device for SUDMAC in setup-sh7757

---
about v2:
- No need the .no_error_irq flag.

 arch/sh/include/cpu-sh4/cpu/sh7757.h   |    1 +
 arch/sh/kernel/cpu/sh4a/setup-sh7757.c |   49 ++++++++++++++++++++++++++++++++
 2 files changed, 50 insertions(+), 0 deletions(-)

index 41f9f8b..f9be40a 100644
@@ -283,5 +283,6 @@ enum {
 	SHDMA_SLAVE_RIIC8_RX,
 	SHDMA_SLAVE_RIIC9_TX,
 	SHDMA_SLAVE_RIIC9_RX,
+	SHDMA_SLAVE_SUDMAC00,
 };
 #endif /* __ASM_SH7757_H__ */

1.7.1