board: dra7: fit: add support for selecting dtb dynamically

FIT allows for a multiple dtb in a single image. SPL needs a way to
detect the right dtb to be used. Adding support for the same.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>

board/ti/dra7xx/evm.c

@@ -727,3 +727,15 @@ int ft_board_setup(void *blob, bd_t *bd)
 	return 0;
 }
 #endif
+
+#ifdef CONFIG_SPL_LOAD_FIT
+int board_fit_config_name_match(const char *name)
+{
+	if (is_dra72x() && !strcmp(name, "dra72-evm"))
+		return 0;
+	else if (!is_dra72x() && !strcmp(name, "dra7-evm"))
+		return 0;
+	else
+		return -1;
+}
+#endif