stdlib: Minor typo fixed

In hbm.py, it says "Interfaces for LPDDR5 memory devices".

I think LPDDR5 should be replaced with HBM.

Change-Id: I87e0beafa79e6e3d9176edaf69b34a38230e9271
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/62654
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jiajie Chen <c@jia.je>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
1 file changed