[opensbi] create opensbi from T-Head official:

repo: https://github.com/T-head-Semi/opensbi
	commit: 89182b257c8798e15e4c685c1af0c2862d528d2a

Change-Id: I7b39d66729e0108661a6f4c9e28acbdb303684ea

opensbi/scripts/d2c.sh

@@ -0,0 +1,74 @@
+#!/bin/bash
+
+function usage()
+{
+	echo "Usage:"
+	echo " $0 [options]"
+	echo "Options:"
+	echo "     -h                   Display help or usage"
+	echo "     -i <input_file_path> Input binary file path"
+	echo "     -a <c_align>         Output C array alignment"
+	echo "     -p <c_prefix>        Output C array name prefix"
+	echo "     -t <num_zero_bytes>  Output padding zero bytes"
+	exit 1;
+}
+
+# Command line options
+INPUT_PATH=""
+OUTPUT_C_ALIGN=""
+OUTPUT_C_PREFIX=""
+NUM_ZERO_BYTES=0
+
+while getopts "hi:a:p:t:" o; do
+	case "${o}" in
+	h)
+		usage
+		;;
+	i)
+		INPUT_PATH=${OPTARG}
+		;;
+	a)
+		OUTPUT_C_ALIGN=${OPTARG}
+		;;
+	p)
+		OUTPUT_C_PREFIX=${OPTARG}
+		;;
+	t)
+		NUM_ZERO_BYTES=${OPTARG}
+		;;
+	*)
+		usage
+		;;
+	esac
+done
+shift $((OPTIND-1))
+
+if [ -z "${INPUT_PATH}" ]; then
+	echo "Must specify input file path"
+	usage
+fi
+
+if [ ! -f "${INPUT_PATH}" ]; then
+	echo "The input path should be a file"
+	usage
+fi
+
+if [ -z "${OUTPUT_C_ALIGN}" ]; then
+	echo "Must provide output C array alignment"
+	usage
+fi
+
+if [ -z "${OUTPUT_C_PREFIX}" ]; then
+	echo "Must provide output C array name prefix"
+	usage
+fi
+
+printf "const char __attribute__((aligned(%s))) %s_start[] = {\n" "${OUTPUT_C_ALIGN}" "${OUTPUT_C_PREFIX}"
+
+od -v -t x1 -An ${INPUT_PATH} | awk '{for (i=1; i<=NF; i++) printf " 0x%s,", $i; printf "\n"; }'
+
+echo __dummy__ | awk "{for (i=1; i<=${NUM_ZERO_BYTES}; i++) { printf \" 0x00,\"; if (i % 16 == 0) printf \"\n\"; } }"
+
+printf "};\n"
+
+printf "const unsigned long %s_size = sizeof(%s_start);\n" "${OUTPUT_C_PREFIX}" "${OUTPUT_C_PREFIX}"