target: Set LBPWS10 bit in Logical Block Provisioning EVPD

This patch sets the missing LBPWS10 bit within spc_emulate_evpd_b2()
in order to signal WRITE_SAME (10) w/ UNMAP support, following the
existing LBPWS bit to signal WRITE_SAME (16) w/ UNMAP support.

Cc: Martin Petersen <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

drivers/target/target_core_spc.c

@@ -650,7 +650,7 @@ spc_emulate_evpd_b2(struct se_cmd *cmd, unsigned char *buf)
 	 * support the use of the WRITE SAME (16) command to unmap LBAs.
 	 */
 	if (dev->dev_attrib.emulate_tpws != 0)
-		buf[5] |= 0x40;
+		buf[5] |= 0x40 | 0x20;
 
 	return 0;
 }