Remove the cmd_ prefix from command files

Now that they are in their own directory, we can remove this prefix.
This makes it easier to find a file since the prefix does not get in the
way.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>

cmd/version.c

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2000-2009
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <version.h>
+#include <linux/compiler.h>
+#ifdef CONFIG_SYS_COREBOOT
+#include <asm/arch/sysinfo.h>
+#endif
+
+const char __weak version_string[] = U_BOOT_VERSION_STRING;
+
+static int do_version(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	printf("\n%s\n", version_string);
+#ifdef CC_VERSION_STRING
+	puts(CC_VERSION_STRING "\n");
+#endif
+#ifdef LD_VERSION_STRING
+	puts(LD_VERSION_STRING "\n");
+#endif
+#ifdef CONFIG_SYS_COREBOOT
+	printf("coreboot-%s (%s)\n", lib_sysinfo.version, lib_sysinfo.build);
+#endif
+	return 0;
+}
+
+U_BOOT_CMD(
+	version,	1,		1,	do_version,
+	"print monitor, compiler and linker version",
+	""
+);