aspeed: g6: use the correct arm core tune

Use the correct tune for the g6 arm core: vfpv4d16

Change-Id: Iafa88a465f00a1fd452feef50b6e0433e864b67f
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/conf/machine/include/ast2600.inc b/conf/machine/include/ast2600.inc
index 2dcaaf6..1857d14 100644
--- a/conf/machine/include/ast2600.inc
+++ b/conf/machine/include/ast2600.inc
@@ -1,7 +1,7 @@
 SOC_FAMILY = "aspeed-g6"
 include conf/machine/include/soc-family.inc
 require conf/machine/include/aspeed.inc
-require conf/machine/include/tune-cortexa7.inc
+include conf/machine/include/arm/arch-armv7a.inc
 
 UBOOT_ENTRYPOINT = "0x80001000"
 UBOOT_LOADADDRESS = "0x80001000"