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/drivers/qe/qe.c b/drivers/qe/qe.c
index 6e4d732..24549ec 100644
--- a/drivers/qe/qe.c
+++ b/drivers/qe/qe.c
@@ -14,6 +14,7 @@
 #include <linux/immap_qe.h>
 #include <fsl_qe.h>
 #include <mmc.h>
+#include <u-boot/crc.h>
 
 #ifdef CONFIG_ARCH_LS1021A
 #include <asm/arch/immap_ls102xa.h>