Support dynamic 64-bit drmserver

64-bit GSI requires support both 64_32-bit and 64-bit devices at
the same time. Add a new variable TARGET_DYNAMIC_64_32_DRMSERVER
to put drmserver_dynamic.rc into GSI. Which starts 64-bit
drmserver if ro.zygote is zygote64. Otherwise, it keeps the
original behavior to start 32-bit drmserver.

Bug: 282603373
Test: make gsi_arm64-user; Check system/etc/init
Test: make gsi_arm-user; Check systen/etc/init
Change-Id: I4de433ccee8fc316ce565470aa962ab62c95e60f
Merged-In: I4de433ccee8fc316ce565470aa962ab62c95e60f
diff --git a/drm/drmserver/drmserver.zygote64.rc b/drm/drmserver/drmserver.zygote64.rc
new file mode 100644
index 0000000..60cd906
--- /dev/null
+++ b/drm/drmserver/drmserver.zygote64.rc
@@ -0,0 +1,6 @@
+service drm /system/bin/drmserver64
+    disabled
+    class main
+    user drm
+    group drm system inet drmrpc readproc
+    task_profiles ProcessCapacityHigh