Build tools error on 10.0_RC2

[Ken Wellsch <kwellsch%tampabay.rr.com@localhost>]

While building the "tools" target using build.sh on 10.0_RC2 with an
SS5/170 I encountered this fatal error:

dependall ===> gmp
Cleaning stale cache files NetBSD-10.0_RC2-sparc != none
checking build system type... Invalid configuration `turbosparc-unknown-netbsdelf10.0': machine `turbosparc-unknown' not recognized
configure: error: /bin/sh /usr/src/tools/gmp/../../external/lgpl3/gmp/dist/config.sub turbosparc-unknown-netbsdelf10.0 failed

After a little research, I found that external/lgpl3/gmp/dist/config.sub
was missing the "turbosparc" cpu type.  After adding it, the build of
tools ran successfully.

===> Tools built to /usr/obj/tooldir.NetBSD-10.0_RC2-sparc
===> build.sh ended:      Sun Jan 14 19:28:04 EST 2024
===> Summary of results:
         build.sh command:    ./build.sh -U -u -O /usr/obj -m sparc tools
         build.sh started:    Sat Jan 13 14:30:25 EST 2024
         NetBSD version:      10.0_RC2
         MACHINE:             sparc
         MACHINE_ARCH:        sparc
         Build platform:      NetBSD 10.0_RC2 sparc
         HOST_SH:             /bin/sh
         MAKECONF file:       /etc/mk.conf (File not found)
         TOOLDIR path:        /usr/obj/tooldir.NetBSD-10.0_RC2-sparc
         DESTDIR path:        /usr/obj/destdir.sparc
         RELEASEDIR path:     /usr/obj/releasedir
         Updated makewrapper: /usr/obj/tooldir.NetBSD-10.0_RC2-sparc/bin/nbmake-sparc
         Tools built to /usr/obj/tooldir.NetBSD-10.0_RC2-sparc
         build.sh ended:      Sun Jan 14 19:28:04 EST 2024
===> .

this is what I changed:

===================================================================
RCS file: config.sub,v
retrieving revision 1.1
diff -u -r1.1 config.sub
--- config.sub  2024/01/13 19:25:49     1.1
+++ config.sub  2024/01/13 19:26:53
@@ -116,7 +116,7 @@
 powerpc801 | powerpc821 | powerpc823  | powerpc860 | \
 powerpc64)
   test_cpu=powerpc ;;
-sparcv8 | supersparc | microsparc | \
+sparcv8 | supersparc | microsparc | turbosparc | \
 ultrasparc | ultrasparc2 | ultrasparc2i | ultrasparc3 | ultrasparct[12345])
   test_cpu=sparc ;;
 sh2)