s390: Enable .bss/.struct data allocation directives tests

This reduces the number of unsupported tests on s390 by two.

gas/testsuite/
	* gas/elf/bss.d: Enable for s390*-*-*.
	* gas/elf/bad-bss.d: Likewise.

Signed-off-by: Jens Remus <jremus@linux.ibm.com>

gas/testsuite/gas/elf/bad-bss.d

diff --git a/gas/testsuite/gas/elf/bad-bss.d b/gas/testsuite/gas/elf/bad-bss.d
index 427faf5..645decf 100644
--- a/gas/testsuite/gas/elf/bad-bss.d
+++ b/gas/testsuite/gas/elf/bad-bss.d
@@ -2,4 +2,4 @@
 #source: bss.s
 #error_output: bad-bss.err
 #notarget: arm*-*-elf arm*-*-nto*
-#target: i?86-*-* x86_64-*-* ia64-*-* arm-*-* aarch64-*-* kvx-*-*
+#target: i?86-*-* x86_64-*-* ia64-*-* arm-*-* aarch64-*-* kvx-*-* s390*-*-*

gas/testsuite/gas/elf/bss.d

diff --git a/gas/testsuite/gas/elf/bss.d b/gas/testsuite/gas/elf/bss.d
index 7edba65..da1d336 100644
--- a/gas/testsuite/gas/elf/bss.d
+++ b/gas/testsuite/gas/elf/bss.d
@@ -2,7 +2,7 @@
 #as: --defsym okay=1
 #warning: Warning: zero assumed
 #readelf: -sSW
-#target: i?86-*-* x86_64-*-* ia64-*-* arm-*-* aarch64-*-* kvx-*-*
+#target: i?86-*-* x86_64-*-* ia64-*-* arm-*-* aarch64-*-* kvx-*-* s390*-*-*
 
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