Update src/debug/tester/readme.md

The phrase “Battering memory allocations arrays” is ungrammatical/unclear.

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Signed-off-by: Liam Girdwood <lgirdwood@gmail.com>

Author: lgirdwood

src/debug/tester/readme.md

@@ -9,7 +9,7 @@ Continuous integration often requires validating low-level system interactions t
 Currently, it supports functionalities like:
 
 * **Dummy Operations**: Echoing parameters to verify full-stack serialization roundtrips.
-* **DRAM Verification**: Battering memory allocations arrays within the `LLB`/`L2` domains to detect caching bugs or out-of-bounds pointer crashes (`tester_simple_dram_test`).
+* **DRAM Verification**: Stress-testing memory allocation arrays within the `LLB`/`L2` domains to detect caching bugs or out-of-bounds pointer crashes (`tester_simple_dram_test`).
 
 ## Architecture