crc32: Use the crc.h header for crc functions

Drop inclusion of crc.h in common.h and use the correct header directly
instead.

With this we can drop the conflicting definition in fw_env.h and rely on
the crc.h header, which is already included.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/board/gdsys/p1022/controlcenterd-id.c b/board/gdsys/p1022/controlcenterd-id.c
index 43f5404..d6798bd 100644
--- a/board/gdsys/p1022/controlcenterd-id.c
+++ b/board/gdsys/p1022/controlcenterd-id.c
@@ -18,6 +18,7 @@
 #include <i2c.h>
 #include <mmc.h>
 #include <tpm-v1.h>
+#include <u-boot/crc.h>
 #include <u-boot/sha1.h>
 #include <asm/byteorder.h>
 #include <asm/unaligned.h>