embedded.mk: move dependencies to sepolicy

Some selinux build packages are defined in embedded.mk,
others are defined in system/sepolicy/Android.mk. Move all
to sepolicy as a dependency of the phony package selinux_policy
which is defined in embedded.mk.

Test: build Marlin (Treble) and Angler (non-Treble)
Merged-In: I734c2909354349d146c6f78beb74bd990d9af30d
Change-Id: I734c2909354349d146c6f78beb74bd990d9af30d

target/product/embedded.mk

@@ -85,20 +85,10 @@ PRODUCT_PACKAGES += \
     system_manifest.xml \
     system_compatibility_matrix.xml \
 
-# SELinux packages
+# SELinux packages are added as dependencies of the selinux_policy
+# phony package.
 PRODUCT_PACKAGES += \
-    nonplat_mac_permissions.xml \
-    nonplat_property_contexts \
-    nonplat_seapp_contexts \
-    nonplat_service_contexts \
-    nonplat_hwservice_contexts \
-    plat_mac_permissions.xml \
-    plat_property_contexts \
-    plat_seapp_contexts \
-    plat_service_contexts \
-    plat_hwservice_contexts \
     selinux_policy \
-    vndservice_contexts
 
 # AID Generation for
 # <pwd.h> and <grp.h>