Add support for .bss section in oat files.

Change-Id: I779b80b8139d9afdc28373f8c68edff5df7726ce
diff --git a/compiler/elf_writer_quick.cc b/compiler/elf_writer_quick.cc
index 401d5a9..a822b24 100644
--- a/compiler/elf_writer_quick.cc
+++ b/compiler/elf_writer_quick.cc
@@ -229,6 +229,7 @@
   const OatHeader& oat_header = oat_writer->GetOatHeader();
   Elf_Word oat_data_size = oat_header.GetExecutableOffset();
   uint32_t oat_exec_size = oat_writer->GetSize() - oat_data_size;
+  uint32_t oat_bss_size = oat_writer->GetBssSize();
 
   OatWriterWrapper wrapper(oat_writer);
 
@@ -243,6 +244,8 @@
           oat_data_size,
           oat_data_size,
           oat_exec_size,
+          RoundUp(oat_data_size + oat_exec_size, kPageSize),
+          oat_bss_size,
           compiler_driver_->GetCompilerOptions().GetIncludeDebugSymbols(),
           debug));