Export qcom UM hal root to soong

Change-Id: Iabb75e8745dba9069c2eab0d5ef41b2171f4c048

build/soong/android/variable.go

@@ -14,6 +14,10 @@ type Product_variables struct {
 		Overrides []string
 		Shared_libs []string
 	}
+	Qcom_um_soong_namespace struct {
+		Cflags []string
+		Header_libs []string
+	}
 	Recovery_skip_ev_rel_input struct {
 		Cflags []string
 	}
@@ -66,6 +70,7 @@ type ProductVariables struct {
 	Apply_msm8974_1440p_egl_workaround  *bool `json:",omitempty"`
 	Bootloader_message_offset  *int `json:",omitempty"`
 	Has_legacy_camera_hal1  *bool `json:",omitempty"`
+	Qcom_um_soong_namespace  *string `json:",omitempty"`
 	Recovery_skip_ev_rel_input  *bool `json:",omitempty"`
 	Should_wait_for_qsee  *bool `json:",omitempty"`
 	Specific_camera_parameter_library  *string `json:",omitempty"`

build/soong/soong_config.mk

@@ -8,6 +8,7 @@ $(call add_json_str_omitempty, Additional_gralloc_10_usage_bits, $(TARGET_ADDITI
 $(call add_json_bool, Apply_msm8974_1440p_egl_workaround, $(filter true,$(TARGET_MSM8974_1440P_EGL_WORKAROUND)))
 $(call add_json_val_default, Bootloader_message_offset, $(BOOTLOADER_MESSAGE_OFFSET), 0)
 $(call add_json_bool, Has_legacy_camera_hal1, $(filter true,$(TARGET_HAS_LEGACY_CAMERA_HAL1)))
+$(call add_json_str_omitempty, Qcom_um_soong_namespace, $(if $(filter $(UM_PLATFORMS),$(TARGET_BOARD_PLATFORM)),$(QCOM_SOONG_NAMESPACE),))
 $(call add_json_bool, Recovery_skip_ev_rel_input, $(filter true,$(TARGET_RECOVERY_SKIP_EV_REL_INPUT)))
 $(call add_json_bool, Should_wait_for_qsee, $(filter true,$(TARGET_KEYMASTER_WAIT_FOR_QSEE)))
 $(call add_json_str, Specific_camera_parameter_library, $(TARGET_SPECIFIC_CAMERA_PARAMETER_LIBRARY))