linker: restore prelink support

Prelink support is required to load old vendor binary blobs
on many devices properly

This commit partially reverts 4688279db5dcc4004941e7f133c4a1c3617d842c

Change-Id: Ibc835095579c0bbd18aff61f37bd420de353e94d
diff --git a/linker/linker_phdr.h b/linker/linker_phdr.h
index a759262..19e281b 100644
--- a/linker/linker_phdr.h
+++ b/linker/linker_phdr.h
@@ -61,6 +61,7 @@
 int
 phdr_table_reserve_memory(const Elf32_Phdr* phdr_table,
                           size_t phdr_count,
+                          Elf32_Addr required_base,
                           void** load_start,
                           Elf32_Addr* load_size,
                           Elf32_Addr* load_bias);