Add crc32c checksum

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/Makefile b/Makefile
index 14fcdd1..11bb17e 100644
--- a/Makefile
+++ b/Makefile
@@ -11,6 +11,7 @@
 OBJS += crc/crc7.o
 OBJS += crc/crc16.o
 OBJS += crc/crc32.o
+OBJS += crc/crc32c.o
 OBJS += crc/crc64.o
 OBJS += crc/sha256.o
 OBJS += crc/sha512.o