mwifiex: missing break statement

This patch adds missing break statement at the end of
PCIE_DEVICE_ID_MARVELL_88W8897 switch section.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/marvell/mwifiex/pcie.c

@@ -2831,6 +2831,7 @@ static void mwifiex_pcie_get_fw_name(struct mwifiex_adapter *adapter)
 		default:
 			break;
 		}
+		break;
 	case PCIE_DEVICE_ID_MARVELL_88W8997:
 		mwifiex_read_reg(adapter, 0x0c48, &revision_id);
 		switch (revision_id) {