media: ddbridge: fix build warnings

Fix 2 build warnings.
These functions are void, so drop the "return"s.

./drivers/media/pci/ddbridge/ddbridge-io.h: warning: 'return' with a value, in function returning void [enabled by default]: => 50:2, 55:2

Signed-off-by: Randy Dunlap <[e-mail]>
Reported-by: Geert Uytterhoeven <[e-mail]>
Cc: Daniel Scheller <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/pci/ddbridge/ddbridge-io.h

···
 
 static inline void ddbcpyto(struct ddb *dev, u32 adr, void *src, long count)
 {
-	return memcpy_toio(dev->regs + adr, src, count);
+	memcpy_toio(dev->regs + adr, src, count);
 }
 
 static inline void ddbcpyfrom(struct ddb *dev, void *dst, u32 adr, long count)
 {
-	return memcpy_fromio(dst, dev->regs + adr, count);
+	memcpy_fromio(dst, dev->regs + adr, count);
 }
 
 static inline u32 safe_ddbreadl(struct ddb *dev, u32 adr)