DEVELOPERS: add myself to configs/kontron_smarc_sal28_defconfig

Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

DEVELOPERS

@@ -1243,8 +1243,10 @@ F:	package/volk/
 
 N:	Heiko Thiery <heiko.thiery@gmail.com>
 F:	board/kontron/bl-imx8mm/
+F:	board/kontron/smarc-sal28/
 F:	board/kontron/pitx-imx8m/
 F:	configs/kontron_bl_imx8mm_defconfig
+F:	configs/kontron_smarc_sal28_defconfig
 F:	configs/kontron_pitx_imx8m_defconfig
 F:	package/altera-stapl/
 F:	package/ipmitool/