Move srcgen over to using .bp files

Test: make currysrc
Test: ./generate_android_icu4j.sh
Change-Id: Ia09f5a9bf2454cc1dcfb93827a10164116a27fd7
diff --git a/tools/srcgen/common.sh b/tools/srcgen/common.sh
index 8d2a47b..fd8e4b8 100644
--- a/tools/srcgen/common.sh
+++ b/tools/srcgen/common.sh
@@ -31,7 +31,7 @@
 ICU4J_DIR=${ANDROID_BUILD_TOP}/external/icu/icu4j
 ANDROID_ICU4J_DIR=${ANDROID_BUILD_TOP}/external/icu/android_icu4j
 
-CLASSPATH=${ANDROID_BUILD_TOP}/out/host/common/obj/JAVA_LIBRARIES/currysrc_intermediates/javalib.jar:${ANDROID_BUILD_TOP}/out/host/common/obj/JAVA_LIBRARIES/android_icu4j_srcgen_intermediates/javalib.jar
+CLASSPATH=${ANDROID_HOST_OUT}/framework/currysrc.jar:${ANDROID_HOST_OUT}/framework/android_icu4j_srcgen.jar
 
 # The parts of ICU4J to include during srcgen.
 #