Port reboot functions to C++
diff --git a/Android.mk b/Android.mk
index e13af68..bd4902d 100644
--- a/Android.mk
+++ b/Android.mk
@@ -39,9 +39,7 @@
     twrp-functions.cpp \
     openrecoveryscript.cpp
 
-ifeq ($(TARGET_RECOVERY_REBOOT_SRC),)
-  LOCAL_SRC_FILES += reboot.c
-else
+ifneq ($(TARGET_RECOVERY_REBOOT_SRC),)
   LOCAL_SRC_FILES += $(TARGET_RECOVERY_REBOOT_SRC)
 endif