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>

arch/arm/mach-meson/Kconfig

@@ -26,6 +26,6 @@ config SYS_SOC
 config SYS_MALLOC_F_LEN
 	default 0x1000
 
-source "board/hardkernel/odroid-c2/Kconfig"
+source "board/amlogic/odroid-c2/Kconfig"
 
 endif

board/hardkernel/odroid-c2/Kconfig → board/amlogic/odroid-c2/Kconfig

@@ -4,7 +4,7 @@ config SYS_BOARD
 	default "odroid-c2"
 
 config SYS_VENDOR
-	default "hardkernel"
+	default "amlogic"
 
 config SYS_CONFIG_NAME
 	default "odroid-c2"

board/hardkernel/odroid-c2/MAINTAINERS → board/amlogic/odroid-c2/MAINTAINERS

 ODROID-C2
 M:	Beniamino Galvani <b.galvani@gmail.com>
 S:	Maintained
-F:	board/hardkernel/odroid-c2/
+F:	board/amlogic/odroid-c2/
 F:	include/configs/odroid-c2.h
 F:	configs/odroid-c2_defconfig