Update makefiles for vndk-sp.

libhidlmemory and android.hidl.memory@1.0 are vndk-sp.
They must have "support_system_process: true" in "vndk" property.

Bug: 63866913
Test: build and boot with BOARD_VNDK_VERSION=current
Merged-In: I0c1ec63d5c5d32e11b578f2f09a897e0129271e7
Change-Id: I0c1ec63d5c5d32e11b578f2f09a897e0129271e7
(cherry picked from commit 0727497c62ee470bc43155f3f1dcc46fd4382510)
diff --git a/libhidlmemory/Android.bp b/libhidlmemory/Android.bp
index a656b1c..59ce7a8 100644
--- a/libhidlmemory/Android.bp
+++ b/libhidlmemory/Android.bp
@@ -17,6 +17,7 @@
     vendor_available: true,
     vndk: {
         enabled: true,
+        support_system_process: true,
     },
     cflags: libhidl_flags,
     shared_libs: [