add first step to get java running

add cacaovm and classpath packages. Add some dependency packages
(gconf, orbit2). Add a non-working icedtea6/openjdk, need to work
on a Linux host for further experimenting.

toolchain/gcc/Makefile

@@ -76,6 +76,7 @@ LANGUAGES:=${LANGUAGES},c++
 endif
 ifeq ($(ADK_TOOLCHAIN_GCC_JAVA),y)
 LANGUAGES:=${LANGUAGES},java
+GCC_CONFOPTS+=		--enable-java-home
 endif
 ifeq ($(ADK_TOOLCHAIN_GCC_ADA),y)
 LANGUAGES:=${LANGUAGES},ada