rename coredump-* --> coredump_*
rename coredump-* --> coredump_*

b/18229600 shamu kernel is failing to build on build machine

Change-Id: Ia67443853443e4d7db9311bf8da69a5dc0da8e5e
Signed-off-by: Iliyan Malchev <b9962a40c76f189681da2829a74a26cab77021ea@google.com>

xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build