[clang-tidy] Fix hungarian notation failed to indicate the number of asterisks...

[clang-tidy] Fix hungarian notation failed to indicate the number of asterisks in check-clang-extra-clang-tidy-checkers-readability

Fix hungarian notation failed to indicate the number of asterisks for the pointers of multiple word types.

- WRONG: `unsigned char* value`  : `value` --> `ucValue`
- RIGHT: `unsigned cahr* value`  : `value`  --> `pucValue`
- RIGHT: `unsigned char** value` : `value`  --> `ppucValue`

Reviewed By: amurzeau, PiotrZSL

Differential Revision: https://reviews.llvm.org/D147779