tests: fixes blkid/md-raidX-whole on Sparc

Since SPARC is using 'sun' partition table by default, make test not to
assume that disk has 'dos' partition table, so write 'dos' partition
table on disk, before proceeding any further.

Signed-off-by: Anatoly Pugachev <matorola@gmail.com>

tests/expected/blkid/md-raid0-whole

@@ -6,8 +6,6 @@ Welcome to fdisk <removed>.
 Changes will remain in memory only, until you decide to write them.
 Be careful before using the write command.
 
-Device does not contain a recognized partition table.
-Created a new <removed>.
 
 Command (m for help): Partition type
    p   primary (0 primary, 0 extended, 4 free)

tests/expected/blkid/md-raid1-whole

@@ -6,8 +6,6 @@ Welcome to fdisk <removed>.
 Changes will remain in memory only, until you decide to write them.
 Be careful before using the write command.
 
-Device does not contain a recognized partition table.
-Created a new <removed>.
 
 Command (m for help): Partition type
    p   primary (0 primary, 0 extended, 4 free)

tests/ts/blkid/md-raid0-whole

@@ -48,6 +48,13 @@ ts_log "Create RAID device"
 mdadm -q --create ${MD_DEVICE} --metadata=0.90 --chunk=64 --level=0 \
 	    --raid-devices=2 ${DEVICE1} ${DEVICE2} >> $TS_OUTPUT 2>> $TS_ERRLOG
 
+# create dos partition table
+$TS_CMD_FDISK ${MD_DEVICE} &>/dev/null <<EOF
+o
+w
+q
+EOF
+
 ts_log "Create partitions on RAID device"
 $TS_CMD_FDISK ${MD_DEVICE} >> $TS_OUTPUT 2>> $TS_ERRLOG <<EOF
 n

tests/ts/blkid/md-raid1-whole

@@ -51,6 +51,13 @@ mdadm -q --create ${MD_DEVICE} --metadata=0.90 --chunk=64 --level=1 \
 	    --raid-devices=2 ${DEVICE1} ${DEVICE2} >> $TS_OUTPUT 2>> $TS_ERRLOG
 udevadm settle
 
+# create dos partition table
+$TS_CMD_FDISK ${MD_DEVICE} &>/dev/null <<EOF
+o
+w
+q
+EOF
+
 ts_log "Create partitions on RAID device"
 $TS_CMD_FDISK ${MD_DEVICE} >> $TS_OUTPUT 2>> $TS_ERRLOG <<EOF
 n