base: Surround a DPRINTFS parameter in ()s.
base: Surround a DPRINTFS parameter in ()s.

Since DPRINTFS is a macro, its arguments need to be properly wrapped so
they expand as expected when used in expressions. This wasn't being done
for the s argument which was used as s->name(). If s contained some
other operator which had lower precedence than ->, the -> would happen
first to whatever was on the right hand side.

Change-Id: Id3250abb9ba51c4b0740f8de0d80ed730ba96944
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/45619
Reviewed-by: Jason Lowe-Power <92de577f37050ad05b60626d2f17913f40dcb1a2@gmail.com>
Maintainer: Jason Lowe-Power <92de577f37050ad05b60626d2f17913f40dcb1a2@gmail.com>
Tested-by: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>

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