[PATCH] ASoC: Makefile: Fix simultaneous build of KUNIT tests

[Amadeusz Sławiński]

Using obj-$() := instead of obj-$() += leads to the latter assignment
overwriting earlier value. Fix this by using incremental assignment to
add additional objects to build.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski at linux.intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski at intel.com>
---
 sound/soc/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/Makefile b/sound/soc/Makefile
index d4528962ac34..453181ef6c94 100644
--- a/sound/soc/Makefile
+++ b/sound/soc/Makefile
@@ -9,12 +9,12 @@ endif
 
 ifneq ($(CONFIG_SND_SOC_TOPOLOGY_KUNIT_TEST),)
 # snd-soc-test-objs := soc-topology-test.o
-obj-$(CONFIG_SND_SOC_TOPOLOGY_KUNIT_TEST) := soc-topology-test.o
+obj-$(CONFIG_SND_SOC_TOPOLOGY_KUNIT_TEST) += soc-topology-test.o
 endif
 
 ifneq ($(CONFIG_SND_SOC_UTILS_KUNIT_TEST),)
 # snd-soc-test-objs := soc-utils-test.o
-obj-$(CONFIG_SND_SOC_UTILS_KUNIT_TEST) := soc-utils-test.o
+obj-$(CONFIG_SND_SOC_UTILS_KUNIT_TEST) += soc-utils-test.o
 endif
 
 ifneq ($(CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM),)
-- 
2.25.1