Sync in the conditional s390x tuning update from c10s

Resolves: RHEL-94867
(cherry picked from commit b23d7ae1bb0f2115e42f53e7ef403100f28a8208)

gcc-toolset-15-gcc.spec

@@ -995,7 +995,9 @@ CONFIGURE_OPTS="\
 %if 0%{?rhel} >= 7
 %if 0%{?rhel} > 7
 %if 0%{?rhel} > 8
-%if 0%{?rhel} >= 9
+%if 0%{?rhel} >= 10
+       --with-arch=z14 --with-tune=z16 \
+%elif 0%{?rhel} >= 9
 	--with-arch=z14 --with-tune=z15 \
 %else
 	--with-arch=z13 --with-tune=arch13 \

rpminspect.yaml

@@ -7,8 +7,8 @@ badfuncs:
       - /usr/lib*/libtsan.so.*.*.*
 
 specname:
-    # In GCC toolsets builds, the spec file name and the package are not
-    # exactly the same, the package is prefixed with gcc-toolset-NN-.
+    # In GCC toolsets builds, the spec file name and the package may not
+    # be exactly the same, the package is prefixed with gcc-toolset-NN-.
     # Let's ignore the prefix.
     match: suffix
     primary: filename