Convert keyboards artifacts to soong

Bug: 337993945
Test: m
Change-Id: I762f41500fb9b360245fbf58a6526dd594ff332e

data/keyboards/Android.bp

@@ -27,3 +27,24 @@ genrule {
         targets: ["droidcore"],
     },
 }
+
+prebuilt_usr_keylayout {
+    name: "keylayout_data",
+    srcs: [
+        "*.kl",
+    ],
+}
+
+prebuilt_usr_keychars {
+    name: "keychars_data",
+    srcs: [
+        "*.kcm",
+    ],
+}
+
+prebuilt_usr_idc {
+    name: "idc_data",
+    srcs: [
+        "*.idc",
+    ],
+}

data/keyboards/keyboards.mk

@@ -14,9 +14,8 @@
 
 # Warning: this is actually a product definition, to be inherited from
 
-PRODUCT_COPY_FILES := \
-  $(call find-copy-subdir-files,*.kl,$(LOCAL_PATH),system/usr/keylayout) \
-  $(call find-copy-subdir-files,*.kcm,$(LOCAL_PATH),system/usr/keychars) \
-  $(call find-copy-subdir-files,*.idc,$(LOCAL_PATH),system/usr/idc)
-
+PRODUCT_PACKAGES += \
+    keylayout_data \
+    keychars_data \
+    idc_data