Re: Use is_xcoff_format in ld testsuite

git commit 7193487fa8 took h8300 out of the notarget list, resulting in
h8300-elf  +FAIL: ld-scripts/section-match-1
h8300-linux  +FAIL: ld-scripts/section-match-1

	* testsuite/ld-scripts/section-match-1.d: xfail h8300.

ld/ChangeLog

@@ -1,3 +1,7 @@
+2020-07-07  Alan Modra  <amodra@gmail.com>
+
+	* testsuite/ld-scripts/section-match-1.d: xfail h8300.
+
 2020-07-07  Alan Modra  <amodra@gmail.com>
 
 	* testsuite/ld-scripts/align.exp: Don't exclude xcoff.  Pass

ld/testsuite/ld-scripts/section-match-1.d

@@ -1,10 +1,11 @@
 #source: section-match-1.s
 #ld: -T section-match-1.t
 #objdump: -s
-#target: [is_elf_format]
 # This test uses arbitrary section names, which are not supported by some
 # file formats.  Also these section names must be present in the
 # output, not translated into some other name, eg .text
+#target: [is_elf_format]
+#xfail: h8300-*-*
 
 .*:     file format .*