aspeed: machine include cleanups

Move most settings from the ast2xxx.inc files to aspeed.inc.  This seems
to be how other BSPs do it (e.g. meta-freescale) and it keeps everying
in one consolidated location for easy perusal, comparison, etc.  bitbake
will take a different path through it's code while parsing but we wind
up with the exact same variable settings in the end.

Remove worthless comments from ast2xxx.inc file headers.

(From meta-aspeed rev: 456a28202671507ca91b35103a13d3a1dac695db)

Change-Id: Id8ed034350761770f5dae4d1a0adecc9bcfea3b5
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-aspeed/conf/machine/include/aspeed.inc b/meta-aspeed/conf/machine/include/aspeed.inc
index 7eaa346..8b3b4f9 100644
--- a/meta-aspeed/conf/machine/include/aspeed.inc
+++ b/meta-aspeed/conf/machine/include/aspeed.inc
@@ -18,4 +18,12 @@
 
 SERIAL_CONSOLES ?= "115200;ttyS4"
 
+DEFAULTTUNE_aspeed-g5 ?= "arm1176jzs"
 DEFAULTTUNE_aspeed-g6 ?= "armv7a-vfpv4d16"
+
+UBOOT_ENTRYPOINT_aspeed-g4 ?= "0x40001000"
+UBOOT_ENTRYPOINT_aspeed-g5 ?= "0x80001000"
+UBOOT_ENTRYPOINT_aspeed-g6 ?= "0x80001000"
+UBOOT_LOADADDRESS_aspeed-g4 ?= "0x40001000"
+UBOOT_LOADADDRESS_aspeed-g5 ?= "0x80001000"
+UBOOT_LOADADDRESS_aspeed-65 ?= "0x80001000"