aspeed: Rename u-boot recipes

Append an -aspeed suffix to Aspeed u-boot and u-boot-fw-utils
recipes to match convention of other upstream BSP layers like
meta-fsl-arm.

Tested: Built palmetto/spoon images and booted in QEMU
Change-Id: I88ce2062876674ea9c104a97cc0bf2c83f2b1fcd
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/conf/machine/include/aspeed.inc b/conf/machine/include/aspeed.inc
index 4990e1a..ff6c83e 100644
--- a/conf/machine/include/aspeed.inc
+++ b/conf/machine/include/aspeed.inc
@@ -1,9 +1,6 @@
 PREFERRED_PROVIDER_virtual/kernel ?= "linux-obmc"
-
-ASPEED_UBOOT_VERSION ?= "v2016.07+git%"
-
-PREFERRED_PROVIDER_virtual/bootloader ?= "u-boot"
-PREFERRED_VERSION_u-boot ?= "${ASPEED_UBOOT_VERSION}"
-PREFERRED_VERSION_u-boot-fw-utils ?= "${ASPEED_UBOOT_VERSION}"
+PREFERRED_PROVIDER_virtual/bootloader ?= "u-boot-aspeed"
+PREFERRED_PROVIDER_u-boot ?= "u-boot-aspeed"
+PREFERRED_PROVIDER_u-boot-fw-utils ?= "u-boot-fw-utils-aspeed"
 
 MACHINEOVERRIDES .= ":aspeed"