Makefile: add licence header

After consultation with current maintainers and with the original author
of the Makefile add SPDX header, describing the licence for the file.

Cc: Colin Walters <walters@verbum.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>

diff --git a/Makefile b/Makefile
index 0719f874a38bb30b93f4a440e1e7f29cbcb00ebb..b74d0d84d9e137a82074b0f7ff578cfb2f2aaddd 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: CC0-1.0
+
 FIRMWAREDIR = /lib/firmware
 NUM_JOBS := $(or $(patsubst -j%,%,$(filter -j%,$(MAKEFLAGS))),\
                 1)