kernel: INSTALLED_RECOVERY_KERNEL -> INSTALLED_RECOVERY_KERNEL_TARGET

* Make it consistent with the rest of the targets

Signed-off-by: Jarl-Penguin <jarlpenguin@outlook.com>
Change-Id: I869d3d8570b4deb2f1e019efa975526a528ca3e7
diff --git a/build/tasks/kernel.mk b/build/tasks/kernel.mk
index 6dd52ce..35a6976 100644
--- a/build/tasks/kernel.mk
+++ b/build/tasks/kernel.mk
@@ -519,16 +519,16 @@
 endif
 
 ifeq ($(RECOVERY_KERNEL_COPY),true)
-file := $(INSTALLED_RECOVERY_KERNEL)
+file := $(INSTALLED_RECOVERY_KERNEL_TARGET)
 ALL_PREBUILT += $(file)
 $(file) : $(RECOVERY_BIN) | $(ACP)
 	$(transform-prebuilt-to-target)
 
-ALL_PREBUILT += $(INSTALLED_RECOVERY_KERNEL)
+ALL_PREBUILT += $(INSTALLED_RECOVERY_KERNEL_TARGET)
 endif
 
 .PHONY: recovery-kernel
-recovery-kernel: $(INSTALLED_RECOVERY_KERNEL)
+recovery-kernel: $(INSTALLED_RECOVERY_KERNEL_TARGET)
 
 .PHONY: kernel
 kernel: $(INSTALLED_KERNEL_TARGET)