md/{002,004}: adjust per_host_store to use numeric boolean

In both md/004 and md/002, when loading the scsi_debug module,
"true" is passed as the value for per_host_store. However, on
older kernels, kstrtobool is more limited, so we get the error:
"scsi_debug: `true' invalid for parameter `per_host_store'".
Change the boolean from "true" to "1" to avoid this issue.

Signed-off-by: John Pittman <jpittman@redhat.com>
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>

Author: jtpittman195

tests/md/002

@@ -22,7 +22,7 @@ test() {
 		atomic_wr=1
 		num_tgts=1
 		add_host=4
-		per_host_store=true
+		per_host_store=1
 		dev_size_mb=16
 	)
 

tests/md/004

@@ -24,7 +24,7 @@ setup_test_device() {
 	local scsi_debug_params=(
 		num_tgts=1
 		add_host=2
-		per_host_store=true
+		per_host_store=1
 		"${@:2}"
 	)