cmd: broadcom: add bnxt boot command

Chimp is a core in Broadcom netxtream controller (bnxt).
Add command to load binary to chimp and boot bnxt.

Signed-off-by: Trac Hoang <trac.hoang@broadcom.com>
Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/broadcom/Makefile b/cmd/broadcom/Makefile
new file mode 100644
index 0000000..22ccf2f
--- /dev/null
+++ b/cmd/broadcom/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0+
+# Copyright 2020 Broadcom
+
+obj-y += chimp_boot.o