test: Convert setup_bootmenu_image() to use FsHelper

Simplify this test-setup code by using the helper.

Signed-off-by: Simon Glass <sjg@chromium.org>

test/py/tests/test_ut.py

@@ -17,6 +17,7 @@ import pytest
 import utils
 # pylint: disable=E0611
 from tests import fs_helper
+from fs_helper import DiskHelper, FsHelper
 from test_android import test_abootimg
 
 def mkdir_cond(dirname):
@@ -45,7 +46,6 @@ def setup_bootmenu_image(ubman):
     This is modelled on Armbian 22.08 Jammy
     """
     mmc_dev = 4
-    fname, mnt = fs_helper.setup_image(ubman, mmc_dev, 0x83)
 
     script = '''# DO NOT EDIT THIS FILE
 #
@@ -121,7 +121,9 @@ booti ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
 # Recompile with:
 # mkimage -C none -A arm -T script -d /boot/boot.cmd /boot/boot.scr
 '''
-    bootdir = os.path.join(mnt, 'boot')
+    fsh = FsHelper(ubman.config, 'ext4', 18, 'mmc')
+    fsh.setup()
+    bootdir = os.path.join(fsh.srcdir, 'boot')
     mkdir_cond(bootdir)
     cmd_fname = os.path.join(bootdir, 'boot.cmd')
     scr_fname = os.path.join(bootdir, 'boot.scr')
@@ -150,13 +152,12 @@ booti ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
     utils.run_and_log(
         ubman, f'echo here {kernel} {symlink}')
     os.symlink(kernel, symlink)
+    fsh.mk_fs()
+    img = DiskHelper(ubman.config, mmc_dev, 'mmc', True)
+    img.add_fs(fsh, DiskHelper.EXT4)
+    img.create()
+    fsh.cleanup()
 
-    fsfile = 'ext18M.img'
-    utils.run_and_log(ubman, f'fallocate -l 18M {fsfile}')
-    utils.run_and_log(ubman, f'mkfs.ext4 {fsfile} -d {mnt}')
-    copy_partition(ubman, fsfile, fname)
-    utils.run_and_log(ubman, f'rm -rf {mnt}')
-    utils.run_and_log(ubman, f'rm -f {fsfile}')
 
 def setup_bootflow_image(ubman):
     """Create a 20MB disk image with a single FAT partition"""