Add ramdisk_available to init_first_stage's deps

Bug: 187196593
Test: boot
Change-Id: Icd98c7e24c848b177d9466e9e01baed40f59fe08
Merged-In: Icd98c7e24c848b177d9466e9e01baed40f59fe08
diff --git a/Android.bp b/Android.bp
index 4644987..c8f06ca 100644
--- a/Android.bp
+++ b/Android.bp
@@ -50,6 +50,7 @@
     host_supported: true,
     vendor_available: true,
     product_available: true,
+    ramdisk_available: true,
     recovery_available: true,
     vndk: {
         enabled: true,