Set Uml if TARGET_USER_MODE_LINUX is true

Bug: 64985489
Test: Manual

Change-Id: Ic472fadcf64eb04e592b6f14570f7650bcd4f2e9
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/core/soong_config.mk b/core/soong_config.mk
index fea0465..ae0a0b2 100644
--- a/core/soong_config.mk
+++ b/core/soong_config.mk
@@ -85,6 +85,7 @@
 	echo '    "Override_rs_driver": "$(OVERRIDE_RS_DRIVER)",'; \
 	echo '    "Treble": $(if $(filter true,$(PRODUCT_FULL_TREBLE)),true,false),'; \
 	echo '    "Pdk": $(if $(filter true,$(TARGET_BUILD_PDK)),true,false),'; \
+	echo '    "Uml": $(if $(filter true,$(TARGET_USER_MODE_LINUX)),true,false),'; \
 	echo ''; \
 	echo '    "ArtUseReadBarrier": $(if $(filter false,$(PRODUCT_ART_USE_READ_BARRIER)),false,true),'; \
 	echo ''; \