ARM: SAMSUNG: Silence empty switch warning in sdhci.h

Add 'default' case to silence the following warning:
arch/arm/plat-samsung/include/plat/sdhci.h:356:9: warning: switch with no cases
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/plat-samsung/include/plat/sdhci.h

@@ -374,6 +374,8 @@ static inline void s3c_sdhci_setname(int id, char *name)
 		s3c_device_hsmmc3.name = name;
 		break;
 #endif
+	default:
+		break;
 	}
 }