x86: Rename state to bmi

Use the common name for the struct, in preparation for passing it around
between functions.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/x86/zboot.c b/cmd/x86/zboot.c
index 40f67a7..0d0a8e5 100644
--- a/cmd/x86/zboot.c
+++ b/cmd/x86/zboot.c
@@ -57,7 +57,7 @@
 static int do_zboot_setup(struct cmd_tbl *cmdtp, int flag, int argc,
 			  char *const argv[])
 {
-	if (!state.base_ptr) {
+	if (!bmi.base_ptr) {
 		printf("base is not set: use 'zboot load' first\n");
 		return CMD_RET_FAILURE;
 	}
@@ -97,7 +97,7 @@
 static int do_zboot_dump(struct cmd_tbl *cmdtp, int flag, int argc,
 			 char *const argv[])
 {
-	struct boot_params *base_ptr = state.base_ptr;
+	struct boot_params *base_ptr = bmi.base_ptr;
 
 	if (argc > 1)
 		base_ptr = (void *)hextoul(argv[1], NULL);