arm64: Hyper-V: vPCI: Fix typo and some indentations

Fix a typo and some indentation errors in the previous commits.

Reported by: jrtc27
Fixes: db247798c5640 ("arm64: Hyper-V: vPCI: SPI MSI mapping for gic v3 acpi in arm64")
Fixes: 6e5b082cab8d9 ("arm64: Hyper-V: vPCI: Adding Hyper-V PCI protocol 1.4")
Sponsored by: Microsoft