scripts: Add C910 to platform list in the binary archive script

This patch adds T-HEAD C910 to RV64 platform list in the binary
archive script.

Signed-off-by: Liu Yibin <yibin_liu@c-sky.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>

scripts/create-binary-archive.sh

@@ -95,6 +95,7 @@ case "${BUILD_RISCV_XLEN}" in
 	BUILD_PLATFORM_SUBDIR+=("kendryte/k210")
 	BUILD_PLATFORM_SUBDIR+=("ariane-fpga")
 	BUILD_PLATFORM_SUBDIR+=("andes/ae350")
+	BUILD_PLATFORM_SUBDIR+=("thead/c910")
 	;;
 *)
 	echo "Invalid RISC-V XLEN"