target/spc: Set SPT correctly in Extended INQUIRY Data VPD page

LIO supports protection types 1,3 so setting a hard-coded SPT=3
is fine for now.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

drivers/target/target_core_spc.c

@@ -458,6 +458,9 @@ spc_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf)
 			buf[4] = 0x4;
 	}
 
+	/* logical unit supports type 1 and type 3 protection */
+	buf[4] |= (0x3 << 3);
+
 	/* Set HEADSUP, ORDSUP, SIMPSUP */
 	buf[5] = 0x07;