Forward ro.hardware.vulkan prop during init

... to enable SwiftShader VK.

Bug: b/142271776
Test: cts -m CtsDeqpTestCases --module-arg CtsDeqpTestCases:include-filter:dEQP-VK.*
Change-Id: Ifbe14c1bda1ade72175201eb16cae851953d5b1a
diff --git a/shared/config/init.common.rc b/shared/config/init.common.rc
index f245273..b25b916 100644
--- a/shared/config/init.common.rc
+++ b/shared/config/init.common.rc
@@ -13,6 +13,7 @@
     setprop ro.hardware.egl ${ro.boot.hardware.egl}
     setprop ro.hardware.gralloc ${ro.boot.hardware.gralloc}
     setprop ro.hardware.hwcomposer ${ro.boot.hardware.hwcomposer}
+    setprop ro.hardware.vulkan ${ro.boot.hardware.vulkan}
 
     # start module load in the background
     start vendor.insmod_sh