pvmfw: Update REQ_DMA value

HVC of experimental REQ_DMA was updated.

Bug: 349571564
Test: manual
Change-Id: If7c4adb16e488d34ea9b9458924db2300822a5d3
diff --git a/libs/libvmbase/src/hyp/hypervisor/kvm.rs b/libs/libvmbase/src/hyp/hypervisor/kvm.rs
index 8450bed..e496f09 100644
--- a/libs/libvmbase/src/hyp/hypervisor/kvm.rs
+++ b/libs/libvmbase/src/hyp/hypervisor/kvm.rs
@@ -75,7 +75,7 @@
 const VENDOR_HYP_KVM_MMIO_GUARD_UNMAP_FUNC_ID: u32 = 0xc6000008;
 
 const VENDOR_HYP_KVM_DEV_REQ_MMIO_FUNC_ID: u32 = 0xc6000012;
-const VENDOR_HYP_KVM_DEV_REQ_DMA_FUNC_ID: u32 = 0xc6000013;
+const VENDOR_HYP_KVM_DEV_REQ_DMA_FUNC_ID: u32 = 0xc600001b;
 
 pub(super) struct RegularKvmHypervisor;