Suppress Cppcheck memory leak as workaround

Cppcheck reported memory leaks in the functions 'q_insert_head' and
'q_insert_tail', which should be considered false alarms.

The workaround is to suppress these warnings in advance.

Change-Id: I3e70b3805a8de197b26ecfe7a70deed4fe88b523

Author: jserv

scripts/pre-commit.hook

@@ -21,6 +21,7 @@ CPPCHECK_suppresses="--inline-suppr harness.c \
 --suppress=staticFunction:harness.c \
 --suppress=nullPointerRedundantCheck:queue.c \
 --suppress=constParameterPointer:queue.c \
+--suppress=memleak:queue.c \
 --suppress=nullPointer:queue.c \
 --suppress=nullPointer:qtest.c \
 --suppress=returnDanglingLifetime:report.c \