Move linker-namespace functions to LIBC_PLATFORM

Bug: http://b/28174921
Change-Id: I089dbeeea813fc2128b9c2f6268a578d23a1954a
(cherry picked from commit 7095da8d3c0f45e41aff5ca3d61aa7c442e21bdf)
diff --git a/libdl/libdl.arm.map b/libdl/libdl.arm.map
index 67c8d08..20efa9a 100644
--- a/libdl/libdl.arm.map
+++ b/libdl/libdl.arm.map
@@ -16,8 +16,6 @@
 
 LIBC_N {
   global:
-    android_init_namespaces;
-    android_create_namespace;
     dlvsym;
 } LIBC;
 
@@ -27,4 +25,6 @@
     android_set_application_target_sdk_version;
     android_get_LD_LIBRARY_PATH;
     android_update_LD_LIBRARY_PATH;
+    android_init_namespaces;
+    android_create_namespace;
 } LIBC_N;
diff --git a/libdl/libdl.arm64.map b/libdl/libdl.arm64.map
index 4d035f5..daf5a86 100644
--- a/libdl/libdl.arm64.map
+++ b/libdl/libdl.arm64.map
@@ -15,8 +15,6 @@
 
 LIBC_N {
   global:
-    android_init_namespaces;
-    android_create_namespace;
     dlvsym;
 } LIBC;
 
@@ -26,4 +24,6 @@
     android_set_application_target_sdk_version;
     android_get_LD_LIBRARY_PATH;
     android_update_LD_LIBRARY_PATH;
+    android_init_namespaces;
+    android_create_namespace;
 } LIBC_N;
diff --git a/libdl/libdl.map.txt b/libdl/libdl.map.txt
index 67ff64e..79bced3 100644
--- a/libdl/libdl.map.txt
+++ b/libdl/libdl.map.txt
@@ -30,8 +30,6 @@
 
 LIBC_N {
   global:
-    android_init_namespaces;
-    android_create_namespace;
     dlvsym;
 } LIBC;
 
@@ -41,4 +39,6 @@
     android_set_application_target_sdk_version;
     android_get_LD_LIBRARY_PATH;
     android_update_LD_LIBRARY_PATH;
+    android_init_namespaces;
+    android_create_namespace;
 } LIBC_N;
diff --git a/libdl/libdl.mips.map b/libdl/libdl.mips.map
index 4d035f5..daf5a86 100644
--- a/libdl/libdl.mips.map
+++ b/libdl/libdl.mips.map
@@ -15,8 +15,6 @@
 
 LIBC_N {
   global:
-    android_init_namespaces;
-    android_create_namespace;
     dlvsym;
 } LIBC;
 
@@ -26,4 +24,6 @@
     android_set_application_target_sdk_version;
     android_get_LD_LIBRARY_PATH;
     android_update_LD_LIBRARY_PATH;
+    android_init_namespaces;
+    android_create_namespace;
 } LIBC_N;
diff --git a/libdl/libdl.mips64.map b/libdl/libdl.mips64.map
index 4d035f5..daf5a86 100644
--- a/libdl/libdl.mips64.map
+++ b/libdl/libdl.mips64.map
@@ -15,8 +15,6 @@
 
 LIBC_N {
   global:
-    android_init_namespaces;
-    android_create_namespace;
     dlvsym;
 } LIBC;
 
@@ -26,4 +24,6 @@
     android_set_application_target_sdk_version;
     android_get_LD_LIBRARY_PATH;
     android_update_LD_LIBRARY_PATH;
+    android_init_namespaces;
+    android_create_namespace;
 } LIBC_N;
diff --git a/libdl/libdl.x86.map b/libdl/libdl.x86.map
index 4d035f5..daf5a86 100644
--- a/libdl/libdl.x86.map
+++ b/libdl/libdl.x86.map
@@ -15,8 +15,6 @@
 
 LIBC_N {
   global:
-    android_init_namespaces;
-    android_create_namespace;
     dlvsym;
 } LIBC;
 
@@ -26,4 +24,6 @@
     android_set_application_target_sdk_version;
     android_get_LD_LIBRARY_PATH;
     android_update_LD_LIBRARY_PATH;
+    android_init_namespaces;
+    android_create_namespace;
 } LIBC_N;
diff --git a/libdl/libdl.x86_64.map b/libdl/libdl.x86_64.map
index 4d035f5..daf5a86 100644
--- a/libdl/libdl.x86_64.map
+++ b/libdl/libdl.x86_64.map
@@ -15,8 +15,6 @@
 
 LIBC_N {
   global:
-    android_init_namespaces;
-    android_create_namespace;
     dlvsym;
 } LIBC;
 
@@ -26,4 +24,6 @@
     android_set_application_target_sdk_version;
     android_get_LD_LIBRARY_PATH;
     android_update_LD_LIBRARY_PATH;
+    android_init_namespaces;
+    android_create_namespace;
 } LIBC_N;