cmd: pxe: Add relocation to pxe_sub cmds

pxe sub commands need to be manually relocated for architectures which
enables MANUAL_RELOC as Microblaze.

Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/pxe.c b/cmd/pxe.c
index 6372fc9..46ac08f 100644
--- a/cmd/pxe.c
+++ b/cmd/pxe.c
@@ -212,10 +212,24 @@
 	U_BOOT_CMD_MKENT(boot, 2, 1, do_pxe_boot, "", "")
 };
 
+static void __maybe_unused pxe_reloc(void)
+{
+	static int relocated_pxe;
+
+	if (!relocated_pxe) {
+		fixup_cmdtable(cmd_pxe_sub, ARRAY_SIZE(cmd_pxe_sub));
+		relocated_pxe = 1;
+	}
+}
+
 static int do_pxe(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
 	struct cmd_tbl *cp;
 
+#if defined(CONFIG_NEEDS_MANUAL_RELOC)
+	pxe_reloc();
+#endif
+
 	if (argc < 2)
 		return CMD_RET_USAGE;