[GOLD] Align PowerPC64 GOT

[Alan Modra]

As done in a27e685f for bfd ld.  Committed.

	* powerpc.cc (Output_data_got_powerpc::Output_data_got_powerpc): Align
	to 256 byte boundary.

diff --git a/gold/powerpc.cc b/gold/powerpc.cc
index 5441c52..39a0324 100644
--- a/gold/powerpc.cc
+++ b/gold/powerpc.cc
@@ -2192,7 +2192,10 @@ public:
       symtab_(symtab), layout_(layout),
       header_ent_cnt_(size == 32 ? 3 : 1),
       header_index_(size == 32 ? 0x2000 : 0)
-  { }
+  {
+    if (size == 64)
+      this->set_addralign(256);
+  }
 
   // Override all the Output_data_got methods we use so as to first call
   // reserve_ent().

-- 
Alan Modra
Australia Development Lab, IBM