[NaCl SDK] Add toolchain's usr/lib to create_nmf's default libpath.

This allows libraries installed by naclports "make" commands
to be visible to create_nmf by default.

BUG=179526
R=binji@chromium.org

Review URL: https://codereview.chromium.org/15896036

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@203977 0039d316-1c4b-4281-b951-d872f2087c98

native_client_sdk/src/tools/create_nmf.py

@@ -610,10 +610,16 @@ def GetDefaultLibPath(config):
 
   osname = getos.GetPlatform()
   libpath = [
+    # Core toolchain libraries
     'toolchain/%s_x86_glibc/x86_64-nacl/lib' % osname,
     'toolchain/%s_x86_glibc/x86_64-nacl/lib32' % osname,
+    # naclports installed libraries
+    'toolchain/%s_x86_glibc/x86_64-nacl/usr/lib' % osname,
+    'toolchain/%s_x86_glibc/i686-nacl/usr/lib' % osname,
+    # SDK bundle libraries
     'lib/glibc_x86_32/%s' % config,
     'lib/glibc_x86_64/%s' % config,
+    # naclports bundle libraries
     'ports/lib/glibc_x86_32/%s' % config,
     'ports/lib/glibc_x86_64/%s' % config,
   ]