riscv: Remove unused _relocate arguments

EFI image handle and system table are not used in _relocate().

Signed-off-by: Ivan Gorinov <ivan.gorinov@intel.com>

SPDX: Convert single license tags to Linux Kernel style

Fix license tags problem after apply patchs about
riscv: Enable efi_loader support.

Signed-off-by: Rick Chen <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
Cc: Greentime Hu <green.hu@gmail.com>

riscv: Add EFI application infrastructure

The hello world binary and a few selftests require to build EFI target
binaries, not just the EFI host environment.

This patch adds all required files to generate an EFI binary for
RISC-V.

Signed-off-by: Alexander Graf <agraf@suse.de>