mb/pcengines/apu1: use generic SPD

Clean up leftovers of old SPD generation and utilize
common procedure to produce SPD binary.

Change-Id: I4e48817c03b4372887bc0ea14209736ae2b4e48f
Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Reviewed-on: https://review.coreboot.org/27301
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/mainboard/pcengines/apu1/Kconfig

@@ -29,6 +29,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select HAVE_OPTION_TABLE
 	select HAVE_CMOS_DEFAULT
 	select BOARD_ROMSIZE_KB_2048
+	select GENERIC_SPD_BIN
 
 config MAINBOARD_DIR
 	string

src/mainboard/pcengines/apu1/Makefile.inc

@@ -31,22 +31,7 @@ ramstage-y += BiosCallOuts.c
 ramstage-y += OemCustomize.c
 ramstage-y += gpio_ftns.c
 
-## DIMM SPD for on-board memory
-SPD_BIN = $(obj)/spd.bin
 
 # Order of names in SPD_SOURCES is important!
-SPD_SOURCES  = HYNIX-H5TQ2G83CFR HYNIX-H5TQ4G83MFR
-
-SPD_DEPS := $(foreach f, $(SPD_SOURCES), src/mainboard/$(MAINBOARDDIR)/$(f).spd.hex)
-
-# Include spd ROM data
-$(SPD_BIN): $(SPD_DEPS)
-	for f in $+; \
-	  do for c in $$(cat $$f | grep -v ^#); \
-	    do printf $$(printf '\%o' 0x$$c); \
-	  done; \
-	done > $@
-
-cbfs-files-y += spd.bin
-spd.bin-file := $(SPD_BIN)
-spd.bin-type := spd
+SPD_SOURCES = HYNIX-H5TQ2G83CFR
+SPD_SOURCES += HYNIX-H5TQ4G83MFR