add eSIM slot configuration for Pixel 4a

Google/Pixel4a/Android.mk

@@ -0,0 +1,8 @@
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := optional
+LOCAL_PACKAGE_NAME := treble-overlay-google-sunfish
+LOCAL_MODULE_PATH := $(TARGET_OUT_PRODUCT)/overlay
+LOCAL_IS_RUNTIME_RESOURCE_OVERLAY := true
+LOCAL_PRIVATE_PLATFORM_APIS := true
+include $(BUILD_PACKAGE)

Google/Pixel4a/AndroidManifest.xml

@@ -0,0 +1,10 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+        package="me.phh.treble.overlay.google.sunfish"
+        android:versionCode="1"
+        android:versionName="1.0">
+        <overlay android:targetPackage="android"
+                android:requiredSystemPropertyName="ro.vendor.build.fingerprint"
+                android:requiredSystemPropertyValue="+google/sunfish*"
+                android:priority="200"
+                android:isStatic="true" />
+</manifest>

Google/Pixel4a/res/values/config.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Device-specific array of SIM slot indexes which are are embedded eUICCs.
+         e.g. If a device has two physical slots with indexes 0, 1, and slot 1 is an
+         eUICC, then the value of this array should be:
+             <integer-array name="non_removable_euicc_slots">
+                 <item>1</item>
+             </integer-array>
+         If a device has three physical slots and slot 1 and 2 are eUICCs, then the value of
+         this array should be:
+             <integer-array name="non_removable_euicc_slots">
+                <item>1</item>
+                <item>2</item>
+             </integer-array>
+         This is used to differentiate between removable eUICCs and built in eUICCs, and should
+         be set by OEMs for devices which use eUICCs. -->
+    <integer-array name="non_removable_euicc_slots">
+        <item>1</item>
+    </integer-array>
+</resources>

overlay.mk

@@ -19,6 +19,7 @@ PRODUCT_PACKAGES += \
 	treble-overlay-essential-ph_1 \
 	treble-overlay-fairphone-fp3 \
 	treble-overlay-gestures \
+	treble-overlay-google-sunfish \
 	treble-overlay-htc-exodus1 \
 	treble-overlay-htc-u12plus \
 	treble-overlay-huawei \