[XS] Change in coreboot[master]: vc/siemens: Only add the include path for hwlib when needed

[Martin L Roth (Code Review)]

Martin L Roth has submitted this change. ( https://review.coreboot.org/c/coreboot/+/77417?usp=email )

Change subject: vc/siemens: Only add the include path for hwlib when needed
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vc/siemens: Only add the include path for hwlib when needed

This patch moves the line adding hwlib to the include path to the inner
makefile so that it doesn't get added to every build, but only when
CONFIG_USE_SIEMENS_HWILIB=y

Signed-off-by: Martin Roth 
Change-Id: Id668b76366a554efff560cec746e637487ebdbf4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77417
Reviewed-by: Felix Singer 
Reviewed-by: Elyes Haouas 
Reviewed-by: Frans Hendriks 
Reviewed-by: Jan Samek 
Reviewed-by: Eric Lai 
Tested-by: build bot (Jenkins) 
---
M src/vendorcode/siemens/Makefile.inc
M src/vendorcode/siemens/hwilib/Makefile.inc
2 files changed, 2 insertions(+), 2 deletions(-)

Approvals:
  Jan Samek: Looks good to me, approved
  build bot (Jenkins): Verified
  Elyes Haouas: Looks good to me, approved
  Felix Singer: Looks good to me, approved
  Frans Hendriks: Looks good to me, approved
  Eric Lai: Looks good to me, approved

diff --git a/src/vendorcode/siemens/Makefile.inc b/src/vendorcode/siemens/Makefile.inc
index 342375b..88fd1c3 100644
--- a/src/vendorcode/siemens/Makefile.inc
+++ b/src/vendorcode/siemens/Makefile.inc
@@ -1,5 +1,3 @@
 ## SPDX-License-Identifier: GPL-2.0-only

subdirs-$(CONFIG_USE_SIEMENS_HWILIB) += hwilib
-
-CPPFLAGS_common += -I$(src)/vendorcode/siemens/hwilib
diff --git a/src/vendorcode/siemens/hwilib/Makefile.inc b/src/vendorcode/siemens/hwilib/Makefile.inc
index 9a5d4be..7b99c0c 100644
--- a/src/vendorcode/siemens/hwilib/Makefile.inc
+++ b/src/vendorcode/siemens/hwilib/Makefile.inc
@@ -2,3 +2,5 @@

romstage-y += hwilib.c
 ramstage-y += hwilib.c
+
+CPPFLAGS_common += -I$(src)/vendorcode/siemens/hwilib