OvmfPkg/LoongArchVirt: Add serial port hook library

Add a serial port hook library in LoongArchVirt named
Fdt16550SerialProtHookLib, this library is referenced from ArmVirtPkg.

LoongArch QEMU virtual machine uses register of LOONGARCH_CSR_KS1 to
transfer serial port base addres from the PEI phase to the DXE phase.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Bibo Mao <maobibo@loongson.cn>
Cc: Dongyan Qian <qiandongyan@loongson.cn>
Signed-off-by: Chao Li <lichao@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
5 files changed