include: Include new location for DT bindings

Starting with commit d5d332d3f7e8 ("devicetree: Move include prefixes
from arch to separate directory") included in 4.12 and newer relocated
the dt-bindings directory, so account for that while passing CPPFLAGS
before DTC runs.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

diff --git a/include/image.mk b/include/image.mk
index 3f5b4544e9e31e423cafe804d01727f011eab258..fc6bf06e96be11170fbba18ed1c3f2c5610f93a9 100644 (file)
--- a/include/image.mk
+++ b/include/image.mk
@@ -161,6 +161,7 @@ define Image/BuildDTB
        $(TARGET_CROSS)cpp -nostdinc -x assembler-with-cpp \
                -I$(DTS_DIR) \
                -I$(DTS_DIR)/include \
+               -I$(LINUX_DIR)/include/ \
                -undef -D__DTS__ $(3) \
                -o $(2).tmp $(1)
        $(LINUX_DIR)/scripts/dtc/dtc -O dtb \