base-stats: Fix stat descriptions

Change-Id: Ib43dc9261287f10c615786a0d533304ab55ac232
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/47741
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
diff --git a/src/mem/mem_interface.cc b/src/mem/mem_interface.cc
index e9c35d2..84bd808 100644
--- a/src/mem/mem_interface.cc
+++ b/src/mem/mem_interface.cc
@@ -2546,9 +2546,9 @@
              "Average memory access latency per NVM burst"),
 
     ADD_STAT(bytesRead, statistics::units::Byte::get(),
-             "Total number of bytes read from DRAM"),
+             "Total number of bytes read from NVM"),
     ADD_STAT(bytesWritten, statistics::units::Byte::get(),
-             "Total number of bytes written to DRAM"),
+             "Total number of bytes written to NVM"),
     ADD_STAT(avgRdBW, statistics::units::Rate<
                 statistics::units::Byte, statistics::units::Second>::get(),
              "Average DRAM read bandwidth in MiBytes/s"),