soong_config: Add flag for msm8974 1440p EGL workaround

Change-Id: Iad2df3dad223604f1e2c454432b9c9239db8d035
diff --git a/build/soong/android/variable.go b/build/soong/android/variable.go
index 79bf947..5a6aa8c 100644
--- a/build/soong/android/variable.go
+++ b/build/soong/android/variable.go
@@ -3,6 +3,9 @@
 	Additional_gralloc_10_usage_bits struct {
 		Cppflags []string
 	}
+	Apply_msm8974_1440p_egl_workaround struct {
+		Cflags []string
+	}
 	Has_legacy_camera_hal1 struct {
 		Cflags []string
 	}
@@ -43,6 +46,7 @@
 
 type ProductVariables struct {
 	Additional_gralloc_10_usage_bits  *string `json:",omitempty"`
+	Apply_msm8974_1440p_egl_workaround  *bool `json:",omitempty"`
 	Has_legacy_camera_hal1  *bool `json:",omitempty"`
 	Java_Source_Overlays *string `json:",omitempty"`
 	Should_skip_waiting_for_qsee  *bool `json:",omitempty"`
diff --git a/build/soong/soong_config.mk b/build/soong/soong_config.mk
index 342b322..32e34eb 100644
--- a/build/soong/soong_config.mk
+++ b/build/soong/soong_config.mk
@@ -4,6 +4,7 @@
 
 # See build/core/soong_config.mk for the add_json_* functions you can use here.
 $(call add_json_str_omitempty, Additional_gralloc_10_usage_bits, $(TARGET_ADDITIONAL_GRALLOC_10_USAGE_BITS))
+$(call add_json_bool, Apply_msm8974_1440p_egl_workaround, $(filter true,$(TARGET_MSM8974_1440P_EGL_WORKAROUND)))
 $(call add_json_bool, Has_legacy_camera_hal1, $(filter true,$(TARGET_HAS_LEGACY_CAMERA_HAL1)))
 $(call add_json_str, Java_Source_Overlays, $(JAVA_SOURCE_OVERLAYS))
 $(call add_json_bool, Should_skip_waiting_for_qsee, $(filter true,$(TARGET_KEYMASTER_SKIP_WAITING_FOR_QSEE)))