s390/qeth: clean up QETH_PROT_* naming

The QETH_PROT_* naming is shared among two unrelated areas - one is
the MPC-level protocol identifiers, the other is the qeth_prot_version
enum.

Rename the MPC definitions to use QETH_MPC_PROT_*.

Signed-off-by: Julian Wiedmann <[e-mail]>
Reviewed-by: Alexandra Winter <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/s390/net/qeth_core_main.c

···
 
 static u8 qeth_mpc_select_prot_type(struct qeth_card *card)
 {
-	return IS_LAYER2(card) ? QETH_PROT_LAYER2 : QETH_PROT_TCPIP;
+	return IS_LAYER2(card) ? QETH_MPC_PROT_L2 : QETH_MPC_PROT_L3;
 }
 
 static int qeth_ulp_enable(struct qeth_card *card)

drivers/s390/net/qeth_core_mpc.h

···
 		(PDU_ENCAPSULATION(buffer) + 0x17)
 #define QETH_ULP_ENABLE_RESP_LINK_TYPE(buffer) \
 		(PDU_ENCAPSULATION(buffer) + 0x2b)
-/* Layer 2 definitions */
-#define QETH_PROT_LAYER2 0x08
-#define QETH_PROT_TCPIP  0x03
+
+#define QETH_MPC_PROT_L2	0x08
+#define QETH_MPC_PROT_L3	0x03
 #define QETH_ULP_ENABLE_PROT_TYPE(buffer) (buffer + 0x50)
 #define QETH_IPA_CMD_PROT_TYPE(buffer) (buffer + 0x19)