[PATCH 351/379][SRU][OEM-5.6] bus: mhi: core: Fix the building of MHI module

[You-Sheng Yang]

From: Manivannan Sadhasivam <manivannan.sadhasivam at linaro.org>

BugLink: https://bugs.launchpad.net/bugs/1879633

The Kbuild rule to build MHI should use the append operator. This fixes
the below warning reported by Kbuild test bot.

WARNING: modpost: missing MODULE_LICENSE() in
drivers/bus/mhi/core/main.o
WARNING: modpost: missing MODULE_LICENSE() in drivers/bus/mhi/core/pm.o
WARNING: modpost: missing MODULE_LICENSE() in
drivers/bus/mhi/core/boot.o

Fixes: 0cbf260820fa ("bus: mhi: core: Add support for registering MHI controllers")
Reported-by: kernel test robot <lkp at intel.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam at linaro.org>
Link: https://lore.kernel.org/r/20200929175218.8178-19-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
(cherry picked from commit 5fc4997fd9d065c98fb312ef56ffadffccc6d61d)
Signed-off-by: You-Sheng Yang <vicamo.yang at canonical.com>
---
 drivers/bus/mhi/core/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/bus/mhi/core/Makefile b/drivers/bus/mhi/core/Makefile
index 12c57ab3724c..c3feb4130aa3 100644
--- a/drivers/bus/mhi/core/Makefile
+++ b/drivers/bus/mhi/core/Makefile
@@ -1,4 +1,4 @@
-obj-$(CONFIG_MHI_BUS) := mhi.o
+obj-$(CONFIG_MHI_BUS) += mhi.o
 
 mhi-y := init.o main.o pm.o boot.o
 mhi-$(CONFIG_MHI_BUS_DEBUG) += debugfs.o
-- 
2.29.2