tvconfig: update ini parser to save line memory size [1/1]

PD#SWPL-186969

Problem:
bootup crash sometime for tvconfig load and parse

Solution:
update ini parser to save line memory size

Verify:
ay301

Change-Id: I1b92530c75c34cb4abf1c49c3a13d88980deb74a
Signed-off-by: Evoke Zhang <evoke.zhang@amlogic.com>
diff --git a/cmd/ini.c b/cmd/ini.c
index 9bce9cc..4c5a693 100644
--- a/cmd/ini.c
+++ b/cmd/ini.c
@@ -259,11 +259,16 @@
 {
 	int ret;
 
-	if (argc > 1)
-		return CMD_RET_USAGE;
+	if (argc == 1) {
+		ret = handle_model_list();
+		return ret;
+	}
+	if (strcmp(argv[1], "lcd") == 0 || strcmp(argv[1], "panel") == 0) {
+		handle_model_list_panel_key();
+		return 0;
+	}
 
-	ret = handle_model_list();
-	return ret;
+	return CMD_RET_USAGE;
 }
 
 U_BOOT_CMD(