hikey: Switch second ARCH variant from deprecated armv7-a-neon to armv8-a

Bug: 64900226
Test: Manual

Change-Id: I5b5f5fc354115fb9edd6b71da3b0f7fcd5b74f14
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/BoardConfigCommon.mk b/BoardConfigCommon.mk
index aad22bb..89aeeb2 100644
--- a/BoardConfigCommon.mk
+++ b/BoardConfigCommon.mk
@@ -5,7 +5,7 @@
 
 # Secondary Arch
 TARGET_2ND_ARCH := arm
-TARGET_2ND_ARCH_VARIANT := armv7-a-neon
+TARGET_2ND_ARCH_VARIANT := armv8-a
 TARGET_2ND_CPU_ABI := armeabi-v7a
 TARGET_2ND_CPU_ABI2 := armeabi