Fix unbounded stack usage warning in core/test/run-mem_region_release_unused.c

Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Fix unused result of realloc warning in core/test/run-malloc.c

Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
silence integer/pointer from integer/pointer warnings in core/test/run-mem_region_init.c

Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Silence warning for hdata/tests/stubs.c prlog missing prototype

We get the real prototype in real code from skiboot.h

Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Fix warning of potential unbound stack usage in hdata/memory.c

Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>