Implement copy_files function

Bug: 193540681
Test: treehugger
Change-Id: Iffc64551e733747a9a29c14b1f674b3a533f44ba
diff --git a/tests/device.rbc b/tests/device.rbc
index d9100fd..b57dbf9 100644
--- a/tests/device.rbc
+++ b/tests/device.rbc
@@ -21,7 +21,8 @@
 ### PRODUCT_COPY_FILES += device_from:device_to
 ### include $(LOCAL_PATH)/include1.mk
 ### PRODUCT_PACKAGES += dev_after
-### PRODUCT_COPY_FILES += $(call find-copy-subdir-files,audio_platform_info*.xml,device/google/redfin/audio,$(TARGET_COPY_OUT_VENDOR)/etc) xyz
+### PRODUCT_COPY_FILES += $(call find-copy-subdir-files,audio_platform_info*.xml,device/google/redfin/audio,$(TARGET_COPY_OUT_VENDOR)/etc) xyz:/etc/xyz
+### PRODUCT_COPY_FILES += $(call copy-files,x.xml y.xml,/etc)
 ### $(call add_soong_namespace,NS1)
 ### $(call add_soong_config_var_value,NS1,v1,abc)
 ### $(call add_soong_config_var_value,NS1,v2,def)
@@ -45,7 +46,8 @@
   _include1_init(g, handle)
   cfg["PRODUCT_PACKAGES"] += ["dev_after"]
   cfg["PRODUCT_COPY_FILES"] += (rblf.find_and_copy("audio_platform_info*.xml", "device/google/redfin/audio", "||VENDOR-PATH-PH||/etc") +
-      ["xyz"])
+      ["xyz:/etc/xyz"])
+  cfg["PRODUCT_COPY_FILES"] += rblf.copy_files("x.xml y.xml", "/etc")
   rblf.add_soong_config_namespace(g, "NS1")
   rblf.add_soong_config_var_value(g, "NS1", "v1", "abc")
   rblf.add_soong_config_var_value(g, "NS1", "v2", "def")
diff --git a/tests/run.rbc b/tests/run.rbc
index da88886..15f6212 100644
--- a/tests/run.rbc
+++ b/tests/run.rbc
@@ -51,7 +51,9 @@
           "part_from:part_to",
           "device_from:device_to",
           "device/google/redfin/audio/audio_platform_info_noextcodec_snd.xml:||VENDOR-PATH-PH||/etc/audio_platform_info_noextcodec_snd.xml",
-          "xyz"
+          "xyz:/etc/xyz",
+          "x.xml:/etc/x.xml",
+          "y.xml:/etc/y.xml",
       ],
       "PRODUCT_HOST_PACKAGES": ["host"],
       "PRODUCT_PACKAGES": [