repart: Fix size round up/round down

Currently, we round minimum sizes up and maximum size down, whereas
it should be the opposite as the current approach means that if the
same size is used for min and max, the min size will end up bigger
than the max size after rounding.

(cherry picked from commit 6563aed)

Author: DaanDeMeyer

src/partition/repart.c

@@ -1611,10 +1611,10 @@ static int partition_read_definition(Partition *p, const char *path, const char
                 { "Partition", "Priority",           config_parse_int32,         0, &p->priority             },
                 { "Partition", "Weight",             config_parse_weight,        0, &p->weight               },
                 { "Partition", "PaddingWeight",      config_parse_weight,        0, &p->padding_weight       },
-                { "Partition", "SizeMinBytes",       config_parse_size4096,      1, &p->size_min             },
-                { "Partition", "SizeMaxBytes",       config_parse_size4096,     -1, &p->size_max             },
-                { "Partition", "PaddingMinBytes",    config_parse_size4096,      1, &p->padding_min          },
-                { "Partition", "PaddingMaxBytes",    config_parse_size4096,     -1, &p->padding_max          },
+                { "Partition", "SizeMinBytes",       config_parse_size4096,     -1, &p->size_min             },
+                { "Partition", "SizeMaxBytes",       config_parse_size4096,      1, &p->size_max             },
+                { "Partition", "PaddingMinBytes",    config_parse_size4096,     -1, &p->padding_min          },
+                { "Partition", "PaddingMaxBytes",    config_parse_size4096,      1, &p->padding_max          },
                 { "Partition", "FactoryReset",       config_parse_bool,          0, &p->factory_reset        },
                 { "Partition", "CopyBlocks",         config_parse_copy_blocks,   0, p                        },
                 { "Partition", "Format",             config_parse_fstype,        0, &p->format               },