Add support for JNI libraries to soong_app_prebuilt.mk

Use install_jni_libs_internal.mk to install JNI libraries alongside
preinstalled APKs.  APKs with embedded JNI libraries are handled
within Soong.

Bug: 80095087
Test: m checkbuild
Change-Id: I2ecf10b6771dff14c940cc6e6442eb2ae43a75b0
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 5aa27ca..07e34e1 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -318,6 +318,7 @@
 LOCAL_PREBUILT_JNI_LIBS_$(TARGET_ARCH):=
 LOCAL_REQUIRED_MODULES_$(TARGET_ARCH):=
 LOCAL_SHARED_LIBRARIES_$(TARGET_ARCH):=
+LOCAL_SOONG_JNI_LIBS_$(TARGET_ARCH):=
 LOCAL_SRC_FILES_EXCLUDE_$(TARGET_ARCH):=
 LOCAL_SRC_FILES_$(TARGET_ARCH):=
 LOCAL_STATIC_LIBRARIES_$(TARGET_ARCH):=
@@ -340,6 +341,7 @@
 LOCAL_PREBUILT_JNI_LIBS_$(TARGET_2ND_ARCH):=
 LOCAL_REQUIRED_MODULES_$(TARGET_2ND_ARCH):=
 LOCAL_SHARED_LIBRARIES_$(TARGET_2ND_ARCH):=
+LOCAL_SOONG_JNI_LIBS_$(TARGET_2ND_ARCH):=
 LOCAL_SRC_FILES_EXCLUDE_$(TARGET_2ND_ARCH):=
 LOCAL_SRC_FILES_$(TARGET_2ND_ARCH):=
 LOCAL_STATIC_LIBRARIES_$(TARGET_2ND_ARCH):=