board: amlogic: Rename folder for Amlogic boards

s/hardkernel/amlogic/ to have a single place for all the amlogic-based
boards.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Acked-by: Beniamino Galvani <b.galvani@gmail.com>
diff --git a/arch/arm/mach-meson/Kconfig b/arch/arm/mach-meson/Kconfig
index 77d3cfe..af3be59 100644
--- a/arch/arm/mach-meson/Kconfig
+++ b/arch/arm/mach-meson/Kconfig
@@ -26,6 +26,6 @@
 config SYS_MALLOC_F_LEN
 	default 0x1000
 
-source "board/hardkernel/odroid-c2/Kconfig"
+source "board/amlogic/odroid-c2/Kconfig"
 
 endif