tests: littlefs: fix test_lfs_basic for medium and large partitions

Fixes failed test_lfs_basic for medium partition > 960KB
and for large partition > 3MB.
Flashes with large erase size require larger test partition sizes
(e.g. s26ks512s0 has 256KB erase size).

Signed-off-by: Andrej Butok <[email protected]>

Author: butok

tests/subsys/fs/littlefs/src/test_lfs_basic.c

@@ -84,10 +84,6 @@ static int check_medium(void)
 		 stat.f_bsize, stat.f_frsize, stat.f_blocks, stat.f_bfree);
 	zassert_equal(stat.f_bsize, MEDIUM_IO_SIZE,
 		      "bsize fail");
-	zassert_equal(stat.f_frsize, 4096,
-		      "frsize fail");
-	zassert_equal(stat.f_blocks, 240,
-		      "blocks fail");
 	zassert_equal(stat.f_bfree, stat.f_blocks - 2U,
 		      "bfree fail");
 
@@ -116,10 +112,6 @@ static int check_large(void)
 		 stat.f_bsize, stat.f_frsize, stat.f_blocks, stat.f_bfree);
 	zassert_equal(stat.f_bsize, LARGE_IO_SIZE,
 		      "bsize fail");
-	zassert_equal(stat.f_frsize, 32768,
-		      "frsize fail");
-	zassert_equal(stat.f_blocks, 96,
-		      "blocks fail");
 	zassert_equal(stat.f_bfree, stat.f_blocks - 2U,
 		      "bfree fail");