MIPS: Loongson: Add a missing break statement in CS5536 IDE code

Signed-off-by: NWu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Zhang Le <r0bertz@gentoo.org>
Cc: Hu Hongbing <huhb@lemote.com>
Patchwork: http://patchwork.linux-mips.org/patch/1251/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/loongson/common/cs5536/cs5536_ide.c

@@ -179,6 +179,7 @@ u32 pci_ide_read_reg(int reg)
 	case PCI_IDE_ETC_REG:
 		_rdmsr(IDE_MSR_REG(IDE_ETC), &hi, &lo);
 		conf_data = lo;
+		break;
 	case PCI_IDE_PM_REG:
 		_rdmsr(IDE_MSR_REG(IDE_INTERNAL_PM), &hi, &lo);
 		conf_data = lo;