memblock test: Update TODO list

Remove the completed items from TODO list.
Signed-off-by: NShaoqin Huang <shaoqin.huang@intel.com>
Signed-off-by: NMike Rapoport <rppt@linux.ibm.com>
Link: https://lore.kernel.org/r/20221011062128.49359-4-shaoqin.huang@intel.com

tools/testing/memblock/TODO

 TODO
 =====
 
-1. Add tests trying to memblock_add() or memblock_reserve() 129th region.
-   This will trigger memblock_double_array(), make sure it succeeds.
-   *Important:* These tests require valid memory ranges, use dummy physical
-                memory block from common.c to implement them. It is also very
-                likely that the current MEM_SIZE won't be enough for these
-                test cases. Use realloc to adjust the size accordingly.
-
-2. Add test cases using this functions (implement them for both directions):
+1. Add test cases using this functions (implement them for both directions):
    + memblock_alloc_raw()
    + memblock_alloc_exact_nid_raw()
    + memblock_alloc_try_nid_raw()
 
-3. Add tests for memblock_alloc_node() to check if the correct NUMA node is set
+2. Add tests for memblock_alloc_node() to check if the correct NUMA node is set
    for the new region