libprocessgroup: Add libcgrouprc

This module is an LL-NDK library that can be loaded by
modules that link to libprocessgroup (which is in VNDK).
This module defines APIs that reads cgroups.rc file
programatically. Internally, it uses libcgrouprc_format to
do so.

Test: builds
Bug: 123664216

Change-Id: I9c13c0528461758154e23cbab3a94ade7fb351ee
Merged-In: I9c13c0528461758154e23cbab3a94ade7fb351ee
diff --git a/libprocessgroup/cgrouprc/libcgrouprc.map.txt b/libprocessgroup/cgrouprc/libcgrouprc.map.txt
new file mode 100644
index 0000000..91df392
--- /dev/null
+++ b/libprocessgroup/cgrouprc/libcgrouprc.map.txt
@@ -0,0 +1,11 @@
+LIBCGROUPRC { # introduced=29
+  global:
+    ACgroupFile_getVersion;
+    ACgroupFile_getControllerCount;
+    ACgroupFile_getController;
+    ACgroupController_getVersion;
+    ACgroupController_getName;
+    ACgroupController_getPath;
+  local:
+    *;
+};