dm: add elf loader to dm

This patch adds a simple 32bit static elf binary loader to acrn DM.
And if the elf binary follow multiboot protocol, only memory info
will be included in multiboot info.

Tracked-On: #1465
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>

devicemodel/core/sw_load_bzimage.c

@@ -30,6 +30,7 @@
 #include <stdlib.h>
 #include <stdbool.h>
 
+#include "dm.h"
 #include "vmmapi.h"
 #include "sw_load.h"
 
@@ -137,6 +138,8 @@ acrn_parse_kernel(char *arg)
 				kernel_path);
 			exit(10); /* Non-zero */
 		}
+		kernel_file_name = kernel_path;
+
 		with_kernel = 1;
 		printf("SW_LOAD: get kernel path %s\n", kernel_path);
 		return 0;