hikey960: update self-extractors

With mali binaries updated to mali-DDK-r4p0-01rel0, we
can boot Android without hisilicon proprietary blobs
and with opensource gralloc implementation. hence we are
dropping hisilicon binaries.

Change-Id: I08ce05c70fd25a2f8196b58a3944d0eba940f568
Signed-off-by: Vishal Bhoj <vishal.bhoj@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
diff --git a/self-extractors_hikey960/arm/COPYRIGHT b/self-extractors_hikey960/arm/COPYRIGHT
index 4e017c2..c627c1a 100644
--- a/self-extractors_hikey960/arm/COPYRIGHT
+++ b/self-extractors_hikey960/arm/COPYRIGHT
@@ -1 +1 @@
-# (C) HiSilicon Co. Ltd.
+# (C) ARM Limited.