Use default sub-segment align for non-ELF powerpc

[Alan Modra]

Defining this to zero for COFF and PE meant that code sections were
padded with zeros.  The fact that no one has complained since 2006
says these targets are dead, I guess.

	* config/tc-ppc.h (SUB_SEGMENT_ALIGN): Define only for ELF.

diff --git a/gas/config/tc-ppc.h b/gas/config/tc-ppc.h
index d7766e3..778acf5 100644
--- a/gas/config/tc-ppc.h
+++ b/gas/config/tc-ppc.h
@@ -85,7 +85,9 @@ extern char *ppc_target_format (void);
 extern void ppc_handle_align (struct frag *);
 extern void ppc_frag_check (struct frag *);
 
+#ifdef OBJ_ELF
 #define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0
+#endif
 
 #define md_frag_check(FRAGP) ppc_frag_check (FRAGP)
 

-- 
Alan Modra
Australia Development Lab, IBM