[lldb] [llvm] [Obj2Yaml] Add support for minidump generation with 64b memory ranges. (PR #101272)

[Greg Clayton via llvm-commits]

clayborg wrote:

```
0x07fffffcf081828b - 0x07fffffcf0818283 = 8 (from MemoryRanges[0]) and there are only 5 bytes in the file's hexdump
```
So the data for MemoryRanges[1] will be off since it will think it starts at:
```
BaseRva + 8 = 0x5c + 8 = 0x00000064
```
And that points to the last 2 bytes of the file. 

https://github.com/llvm/llvm-project/pull/101272