ld: relax alignment requirements of compressed .debug_* section checks

This fixes a failure of the gabinormal linking test on some distros
(where e.g. crt1.o has a .debug_aranges section with larger alignment).

ld/testsuite/ChangeLog

@@ -1,3 +1,8 @@
+2015-12-07  Jan Beulich  <jbeulich@suse.com>
+
+	* ld-elf/gabiend.rt: Accept any alignment.
+	* ld-elf/gabinormal.rt: Likewise.
+
 2015-12-04  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* ld-i386/i386.exp: Run mov2a and mov2b.

ld/testsuite/ld-elf/gabiend.rt

@@ -1,4 +1,4 @@
 #...
  +\[[0-9a-f]+\]: .*COMPRESSED
- +ZLIB, [0-9a-f]+, 1
+ +ZLIB, [0-9a-f]+, [1-9][0-9]*
 #pass

ld/testsuite/ld-elf/gabinormal.rt

@@ -1,4 +1,4 @@
 #...
  +\[[0-9a-f]+\]: .*COMPRESSED
- +ZLIB, [0-9a-f]+, 1
+ +ZLIB, [0-9a-f]+, [1-9][0-9]*
 #pass