Move contacts common LetterTile class into its own package.

A subsequent change will move the ContactPhotoManager related code,
eventually enabling the removal of contacts/common.

Bug: 37208805
Test: TAP
PiperOrigin-RevId: 161724700
Change-Id: Ice0789951ae544f6e27bcdaab0c032b218c83613
diff --git a/Android.mk b/Android.mk
index efbdb09..76bb716 100644
--- a/Android.mk
+++ b/Android.mk
@@ -85,6 +85,7 @@
 	$(BASE_DIR)/dialer/dialpadview/res \
 	$(BASE_DIR)/dialer/enrichedcall/simulator/res \
 	$(BASE_DIR)/dialer/interactions/res \
+	$(BASE_DIR)/dialer/lettertile/res \
 	$(BASE_DIR)/dialer/main/impl/res \
 	$(BASE_DIR)/dialer/notification/res \
 	$(BASE_DIR)/dialer/oem/res \
@@ -145,6 +146,7 @@
 	$(BASE_DIR)/dialer/enrichedcall/simulator/AndroidManifest.xml \
 	$(BASE_DIR)/dialer/interactions/AndroidManifest.xml \
 	$(BASE_DIR)/dialer/main/impl/AndroidManifest.xml \
+	$(BASE_DIR)/dialer/lettertile/AndroidManifest.xml \
 	$(BASE_DIR)/dialer/notification/AndroidManifest.xml \
 	$(BASE_DIR)/dialer/oem/AndroidManifest.xml \
 	$(BASE_DIR)/dialer/phonenumberutil/AndroidManifest.xml \
@@ -220,6 +222,7 @@
 	--extra-packages com.android.dialer.enrichedcall.simulator \
 	--extra-packages com.android.dialer.interactions \
 	--extra-packages com.android.dialer.main.impl \
+	--extra-packages com.android.dialer.lettertile \
 	--extra-packages com.android.dialer.notification \
 	--extra-packages com.android.dialer.oem \
 	--extra-packages com.android.dialer.phonenumberutil \