common: Move flash_perror() to flash.h

This function belongs more in flash.h than common.h so move it.

Also remove the space before the bracket in some calls.

Signed-off-by: Simon Glass <sjg@chromium.org>

env/flash.c

@@ -13,6 +13,7 @@
 #include <command.h>
 #include <env.h>
 #include <env_internal.h>
+#include <flash.h>
 #include <linux/stddef.h>
 #include <malloc.h>
 #include <search.h>