fusee: attempt reboot to self if possible, better abort/fatal handlers

fusee/program/program.ld

@@ -22,11 +22,12 @@ SECTIONS
         FILL(0x00000000)
         KEEP(*(.text._ZN3ams4util15GetMicroSecondsEv))
         KEEP(*(.text._ZN3ams4util16WaitMicroSecondsEi))
-        KEEP(*(.text._ZN3ams6nxboot14ShowFatalErrorEPKcz))
-        KEEP(*(.text._ZN3ams6nxboot10UncompressEPvjPKvj))
         KEEP(*(.text.memcpy))
         KEEP(*(.text.memset))
         KEEP(*(.text.memcmp))
+        KEEP(*(.text._ZN3ams6nxboot14ShowFatalErrorEPKcz))
+        KEEP(*(.text._ZN3ams6nxboot10UncompressEPvjPKvj))
+        KEEP(*(.text._ZN3ams6nxboot12RebootToSelfEv))
         _*.o(SORT(.text*))
 		*(.text.unlikely .text.*_unlikely .text.unlikely.*)
 		*(.text.exit .text.exit.*)