Kconfig: Migrate BOARD_LATE_INIT to a select

This option should not really be user selectable.  Note that on PowerPC
we currently only need BOARD_LATE_INIT when CHAIN_OF_TRUST is enabled so be
conditional on that.

Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com> (for UniPhier)
diff --git a/board/congatec/Kconfig b/board/congatec/Kconfig
index 1dc306e..875d1ae 100644
--- a/board/congatec/Kconfig
+++ b/board/congatec/Kconfig
@@ -12,6 +12,7 @@
 
 config TARGET_CONGA_QEVAL20_QA3_E3845
 	bool "congatec QEVAL 2.0 & conga-QA3/E3845"
+	select BOARD_LATE_INIT
 	help
 	  This is the congatec Qseven 2.0 evaluation carrier board
 	  (conga-QEVAL) equipped with the conga-QA3/E3845-4G SoM.