prebuilt-kernel: Remove android-5.4 prebuilts

Will be publishing only android-mainline and
upstream kernel prebuilts from here onwards.

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
diff --git a/build/tasks/kernel.mk b/build/tasks/kernel.mk
index 1f2a338..1f79732 100644
--- a/build/tasks/kernel.mk
+++ b/build/tasks/kernel.mk
@@ -1,7 +1,7 @@
 ifneq ($(filter beryllium, $(TARGET_DEVICE)),)
 
 IMAGE_GZ := device/xiaomi/beryllium/prebuilt-kernel/android-$(TARGET_KERNEL_USE)/Image.gz
-DTB := device/xiaomi/beryllium/prebuilt-kernel/android-$(TARGET_KERNEL_USE)/sdm845-beryllium.dtb
+DTB := device/xiaomi/beryllium/prebuilt-kernel/android-$(TARGET_KERNEL_USE)/sdm845-xiaomi-beryllium.dtb
 
 $(PRODUCT_OUT)/kernel: $(IMAGE_GZ) $(DTB)
 	cat $(IMAGE_GZ) $(DTB) > $@