stand files

[Robert Swindells <rjs%fdy2.co.uk@localhost>]

Do we really want to build and install the stand programs for acorn32,
evbarm and zaurus on all arm platforms ?

We also install disklabel.h and intr.h in platform specific
subdirectories of /usr/include, is there a reason for this ?

I would propose making the change shown below as well as moving things
around in the sets files. This would just build the stand stuff for the
specific MACHINE.

Index: Makefile
===================================================================
RCS file: /cvsroot/src/sys/arch/Makefile,v
retrieving revision 1.47
diff -u -r1.47 Makefile
--- Makefile    1 Apr 2018 04:35:03 -0000       1.47
+++ Makefile    24 Sep 2018 19:53:22 -0000
@@ -16,11 +16,7 @@
 ARCHSUBDIR= powerpc
 .endif
 
-.if ${MACHINE_CPU} == "arm"
-SUBDIR= acorn32 cats epoc32 evbarm hpcarm iyonix netwinder shark zaurus
-.else
 SUBDIR=        ${MACHINE}
-.endif
 
 .if ${MACHINE} != ${ARCHSUBDIR}
 .if exists(${ARCHSUBDIR})