acrn-config: generate board information on target board

These tools run on the target board and genearate board information.

usage: python3 board_parser.py <board_name> [--out board_info_file]

sample:
	$ sudo python3 board_parser.py apl-up2

v1-v2:
1. allow board parameter for new board

v2-v3:
1. add the usage descriptions for tools
2. add description of kernel cmd line for README
3. output informations to a xml type
4. coding as PEP8 guildline

Tracked-On: #3480
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Reviewed-by: Shuang Zheng shuang.zheng@intel.com
Acked-by: Terry Zou <terry.zou@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>

Author: Wei Liu

misc/acrn-config/target/README

@@ -0,0 +1,13 @@
+board_parser.py will collect all board related info and then generate a board info file for acrn-config host tool usage.
+
+usage: python3 board_parser.py <board_name> [--out board_info_file]
+
+board_name : the name of board that run ACRN hypervisor, like apl-up2/nuc7i7dnb. It will be used as name of the board configurations folder which created by acrn-config host tool.
+board_info_file : (optional) the name of board info file. if it is not specified, a name of <board_name>.xml will be generated under ./out/ folder by default.
+
+Please run this script under native Linux environment with root privilege.
+
+OS requirement:
+	Release:	Ubuntu 18.04+ or ClearLinux 30210+
+	Tools:		cpuid, rdmsr, lspci, dmidecode
+	kernel cmdline: "idle=nomwait intel_idle.max_cstate=0 intel_pstate=disable"