Add libbinderdebug

Allows lshal and dumpsys to share the code to get Binder PID info.

Test: atest libbinderdebug_test lshal_test
Test: diff output of lshal before and after this CL
Bug: 140639610
Change-Id: I04dbe2509673502502ac849ef4ae74147404fc43
diff --git a/cmds/lshal/TableEntry.h b/cmds/lshal/TableEntry.h
index 3c36813..476aa04 100644
--- a/cmds/lshal/TableEntry.h
+++ b/cmds/lshal/TableEntry.h
@@ -32,7 +32,7 @@
 namespace lshal {
 
 using android::procpartition::Partition;
-using Pids = std::vector<int32_t>;
+using Pids = std::vector<pid_t>;
 
 enum class TableColumnType : unsigned int {
     INTERFACE_NAME = 0,