Change in coreboot[master]: mb/lenovo/x1_carbon_gen1: add missing '+' in spd/Makefile

[Alexander Couzens (Code Review)]

Alexander Couzens has uploaded this change for review. ( https://review.coreboot.org/20918

Change subject: mb/lenovo/x1_carbon_gen1: add missing '+' in spd/Makefile
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mb/lenovo/x1_carbon_gen1: add missing '+' in spd/Makefile

Each line of spd config overwriting the slot 0 instead
of appending it.

Change-Id: I0124aa34f1d4fcb30810fb7eef03d4828a7ac430
Signed-off-by: Alexander Couzens 
Tested-on: lenovo x1 carbon gen 1 with elpida 8GB
Fixes: e9787ff61f81 ("mb/lenovo/x1_carbon_gen1: Add 4GiB SPD index 2")
---
M src/mainboard/lenovo/x1_carbon_gen1/spd/Makefile.inc
1 file changed, 2 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/18/20918/1

diff --git a/src/mainboard/lenovo/x1_carbon_gen1/spd/Makefile.inc b/src/mainboard/lenovo/x1_carbon_gen1/spd/Makefile.inc
index ec6e4f3..0c90826 100644
--- a/src/mainboard/lenovo/x1_carbon_gen1/spd/Makefile.inc
+++ b/src/mainboard/lenovo/x1_carbon_gen1/spd/Makefile.inc
@@ -16,8 +16,8 @@
 SPD_BIN = $(obj)/spd.bin

SPD_SOURCES  = elpida.hex    # 0b0000 Single Channel 2GB
-SPD_SOURCES  = samsung.hex   # 0b0001 placeholder
-SPD_SOURCES  = samsung.hex   # 0b0010 4GiB
+SPD_SOURCES  += samsung.hex  # 0b0001 placeholder
+SPD_SOURCES  += samsung.hex  # 0b0010 4GiB
 SPD_DEPS := $(foreach f, $(SPD_SOURCES), src/mainboard/$(MAINBOARDDIR)/spd/$(f))

# Include spd ROM data