getprogname is not defined in glibc

need to remove get_process_name as it is removed
from libcutil. Call getprogname is available in
libc but not LE glibc. Implementing a simple call
wrapper.

Change-Id: I68244b9f7fcbc290222b074f80da03330315ea29
CRs-Fixed: 1080605

utils/platform_lib_abstractions/loc_pla/include/platform_lib_gettid.h

@@ -34,6 +34,10 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
+#ifdef USE_GLIB
+const char* getprogname();
+#endif /* USE_GLIB */
+
 pid_t platform_lib_abstraction_gettid();
 #ifdef __cplusplus
 }

utils/platform_lib_abstractions/loc_pla/src/platform_lib_gettid.cpp

@@ -30,6 +30,12 @@
 
 #ifdef USE_GLIB
 #include <loc_stub_gettid.h>
+
+#include <errno.h>
+const char* getprogname() {
+    return program_invocation_short_name;
+}
+
 #else
 #include <unistd.h>
 #endif /* USE_GLIB */