edk2: update build config

risc-v switched to use split code/vars images like the other archs.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

roms/edk2-build.config

@@ -120,5 +120,7 @@ conf = OvmfPkg/RiscVVirt/RiscVVirtQemu.dsc
 arch = RISCV64
 plat = RiscVVirtQemu
 dest = ../pc-bios
-cpy1 = FV/RISCV_VIRT.fd  edk2-riscv.fd
-pad1 = edk2-riscv.fd     32m
+cpy1 = FV/RISCV_VIRT_CODE.fd  edk2-riscv-code.fd
+cpy2 = FV/RISCV_VIRT_VARS.fd  edk2-riscv-vars.fd
+pad1 = edk2-riscv-code.fd     32m
+pad2 = edk2-riscv-vars.fd     32m