lynx: Add build_flags based properties for SMR/EMR build

Flag: build.RELEASE_IS_SMR
Flag: build.RELEASE_IS_EMR
Flag: build.RELEASE_BASE_OS_LYNX
Bug: 155105803
Change-Id: I3c2d4586accdab96292d2a45b9835b3f49f4255b

device-lynx.mk

@@ -237,6 +237,24 @@ endif
 PRODUCT_VENDOR_PROPERTIES += \
     ro.vendor.build.svn=$(TARGET_SVN)
 
+# Set device family property for SMR
+PRODUCT_PROPERTY_OVERRIDES += \
+    ro.build.device_family=P10C10L10
+
+# Set build properties for SMR builds
+ifeq ($(RELEASE_IS_SMR), true)
+    ifneq (,$(RELEASE_BASE_OS_LYNX))
+        PRODUCT_BASE_OS := $(RELEASE_BASE_OS_LYNX)
+    endif
+endif
+
+# Set build properties for EMR builds
+ifeq ($(RELEASE_IS_EMR), true)
+    ifneq (,$(RELEASE_BASE_OS_LYNX))
+        PRODUCT_PROPERTY_OVERRIDES += \
+        ro.build.version.emergency_base_os=$(RELEASE_BASE_OS_LYNX)
+    endif
+endif
 # Set support hide display cutout feature
 PRODUCT_PRODUCT_PROPERTIES += \
     ro.support_hide_display_cutout=true