Add posix implementation for platform/numa.h functions, relying
on hwloc.

PiperOrigin-RevId: 235742876
diff --git a/configure.py b/configure.py
index 3eb09a1..673825c 100644
--- a/configure.py
+++ b/configure.py
@@ -1751,6 +1751,7 @@
   config_info_line('gdr', 'Build with GDR support.')
   config_info_line('verbs', 'Build with libverbs support.')
   config_info_line('ngraph', 'Build with Intel nGraph support.')
+  config_info_line('numa', 'Build with NUMA support.')
   config_info_line(
       'dynamic_kernels',
       '(Experimental) Build kernels into separate shared objects.')