[virt] Adjust spelling of initialise in code and comments

This cl updates the spelling of "initialise" to "initialize" in
the code and comments.

Test: m com.android.virt pvmfw_img
Change-Id: If0ce2a3e8188ddabd4d4e24912eb4973942bd550
diff --git a/vmbase/src/virtio/hal.rs b/vmbase/src/virtio/hal.rs
index 36f9e56..c84ca5e 100644
--- a/vmbase/src/virtio/hal.rs
+++ b/vmbase/src/virtio/hal.rs
@@ -68,7 +68,7 @@
     /// range. It can't alias any other allocations because we previously validated in
     /// `map_mmio_range` that the PCI MMIO range didn't overlap with any other memory ranges.
     unsafe fn mmio_phys_to_virt(paddr: PhysAddr, size: usize) -> NonNull<u8> {
-        let pci_info = PCI_INFO.get().expect("VirtIO HAL used before PCI_INFO was initialised");
+        let pci_info = PCI_INFO.get().expect("VirtIO HAL used before PCI_INFO was initialized");
         let bar_range = {
             let start = pci_info.bar_range.start.try_into().unwrap();
             let end = pci_info.bar_range.end.try_into().unwrap();
diff --git a/vmbase/src/virtio/pci.rs b/vmbase/src/virtio/pci.rs
index cbb4d26..534d91a 100644
--- a/vmbase/src/virtio/pci.rs
+++ b/vmbase/src/virtio/pci.rs
@@ -63,7 +63,7 @@
 /// 3. Creates and returns a `PciRoot`.
 ///
 /// This must only be called once; it will panic if it is called a second time.
-pub fn initialise(pci_info: PciInfo, memory: &mut MemoryTracker) -> Result<PciRoot, PciError> {
+pub fn initialize(pci_info: PciInfo, memory: &mut MemoryTracker) -> Result<PciRoot, PciError> {
     PCI_INFO.set(Box::new(pci_info.clone())).map_err(|_| PciError::DuplicateInitialization)?;
 
     memory.map_mmio_range(pci_info.cam_range.clone()).map_err(PciError::CamMapFailed)?;