remove 'emu_' from lunch target to correspond to .mk file names

Test: tested by running 'lunch aosp_car_x86-userdebug' and 'lunch 46'

Change-Id: I554d585bd2160868584c1f0a18d9e4f36891d0ec
diff --git a/vendorsetup.sh b/vendorsetup.sh
index 1bec9aa..4e87161 100644
--- a/vendorsetup.sh
+++ b/vendorsetup.sh
@@ -20,7 +20,7 @@
 # In particular, you can add lunch options with the add_lunch_combo
 # function: add_lunch_combo generic-eng
 
-add_lunch_combo aosp_car_emu_arm-userdebug
-add_lunch_combo aosp_car_emu_arm64-userdebug
-add_lunch_combo aosp_car_emu_x86-userdebug
-add_lunch_combo aosp_car_emu_x86_64-userdebug
+add_lunch_combo aosp_car_arm-userdebug
+add_lunch_combo aosp_car_arm64-userdebug
+add_lunch_combo aosp_car_x86-userdebug
+add_lunch_combo aosp_car_x86_64-userdebug