Add audio feature flag.

There are targets which neither have usb host nor pci support but do have audio
capabilities. Those targets should expliclitly specifiy that they support audio
through the new feature flag. The audio feature flag is also implicitly selected
by the usb and pci feature flags.

SVN-Revision: 19643

target/linux/uml/Makefile

@@ -20,7 +20,7 @@ ARCH:=$(shell uname -m | sed \
 )
 BOARD:=uml
 BOARDNAME:=User Mode Linux
-FEATURES:=ext2
+FEATURES:=ext2 audio
 LINUX_CONFIG:=$(CURDIR)/config/$(ARCH)
 
 LINUX_VERSION:=2.6.30.10

target/linux/xburst/Makefile

@@ -9,9 +9,9 @@ include $(TOPDIR)/rules.mk
 ARCH:=mipsel
 BOARD:=xburst
 BOARDNAME:=XBurst JZ47x0
-FEATURES:=jffs2 tgz ubifs
+FEATURES:=jffs2 tgz ubifs audio
 
-LINUX_VERSION:=2.6.32.8
+LINUX_VERSION:=2.6.32.7
 
 DEVICE_TYPE=other