Revert^2 "use new GKI kernel location"

a0281768fe6578407c10754c852823ecf2040e4b

This revert includes a fix to use the lz4 variant of the kernel,
as was the case before, rather than the uncompressed one.

Bug: 170451791
Change-Id: Iaab082d8bba04df82d742d682251447f3e21fe9b
diff --git a/target/board/emulator_arm64/device.mk b/target/board/emulator_arm64/device.mk
index 73dc2f4..dc84192 100644
--- a/target/board/emulator_arm64/device.mk
+++ b/target/board/emulator_arm64/device.mk
@@ -19,7 +19,7 @@
 
 # Cuttlefish has GKI kernel prebuilts, so use those for the GKI boot.img.
 ifeq ($(TARGET_PREBUILT_KERNEL),)
-    LOCAL_KERNEL := device/google/cuttlefish_kernel/5.4-arm64/kernel
+    LOCAL_KERNEL := kernel/prebuilts/5.4/arm64/kernel-5.4-lz4
 else
     LOCAL_KERNEL := $(TARGET_PREBUILT_KERNEL)
 endif
diff --git a/target/board/generic_arm64/device.mk b/target/board/generic_arm64/device.mk
index 1585fbd..6f1bba0 100644
--- a/target/board/generic_arm64/device.mk
+++ b/target/board/generic_arm64/device.mk
@@ -16,16 +16,16 @@
 
 PRODUCT_COPY_FILES += \
     kernel/prebuilts/4.19/arm64/Image.gz:kernel-4.19-gz \
-    device/google/cuttlefish_kernel/5.4-arm64/kernel-5.4:kernel-5.4 \
-    device/google/cuttlefish_kernel/5.4-arm64/kernel-5.4-gz:kernel-5.4-gz \
-    device/google/cuttlefish_kernel/5.4-arm64/kernel-5.4-lz4:kernel-5.4-lz4 \
-    kernel/prebuilts/mainline/arm64/kernel-mainline:kernel-mainline \
-    kernel/prebuilts/mainline/arm64/kernel-mainline-gz:kernel-mainline-gz \
-    kernel/prebuilts/mainline/arm64/kernel-mainline-lz4:kernel-mainline-lz4
+    kernel/prebuilts/5.4/arm64/kernel-5.4:kernel-5.4 \
+    kernel/prebuilts/5.4/arm64/kernel-5.4-gz:kernel-5.4-gz \
+    kernel/prebuilts/5.4/arm64/kernel-5.4-lz4:kernel-5.4-lz4 \
+    kernel/prebuilts/mainline/arm64/kernel-mainline-allsyms:kernel-mainline \
+    kernel/prebuilts/mainline/arm64/kernel-mainline-gz-allsyms:kernel-mainline-gz \
+    kernel/prebuilts/mainline/arm64/kernel-mainline-lz4-allsyms:kernel-mainline-lz4
 
 ifneq (,$(filter userdebug eng,$(TARGET_BUILD_VARIANT)))
 PRODUCT_COPY_FILES += \
-    device/google/cuttlefish_kernel/5.4-arm64/kernel-5.4:kernel-5.4-allsyms \
-    device/google/cuttlefish_kernel/5.4-arm64/kernel-5.4-gz:kernel-5.4-gz-allsyms \
-    device/google/cuttlefish_kernel/5.4-arm64/kernel-5.4-lz4:kernel-5.4-lz4-allsyms
+    kernel/prebuilts/5.4/arm64/kernel-5.4:kernel-5.4-allsyms \
+    kernel/prebuilts/5.4/arm64/kernel-5.4-gz:kernel-5.4-gz-allsyms \
+    kernel/prebuilts/5.4/arm64/kernel-5.4-lz4:kernel-5.4-lz4-allsyms
 endif