board: ti: am43xx: Add FDT fixup for HS devices

Disable RNG and add TEE to FDT used on HS devices.

Signed-off-by: Andrew F. Davis <afd@ti.com>
diff --git a/board/ti/am43xx/board.c b/board/ti/am43xx/board.c
index 9603221..933596d 100644
--- a/board/ti/am43xx/board.c
+++ b/board/ti/am43xx/board.c
@@ -838,6 +838,15 @@
 }
 #endif
 
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	ft_cpu_setup(blob, bd);
+
+	return 0;
+}
+#endif
+
 #ifdef CONFIG_SPL_LOAD_FIT
 int board_fit_config_name_match(const char *name)
 {