Move 64-bit integer division and modulo functions into flash

Saves another 1819 bytes of IRAM (may help with #1582)

Author: igrr

tools/sdk/ld/eagle.app.v6.common.ld

@@ -154,6 +154,8 @@ SECTIONS
            EXCLUDE_FILE (umm_malloc.c.o) .text*)
     *.cpp.o(.literal*, .text*)
     *libm.a:(.literal .text .literal.* .text.*)
+    *libgcc.a:_umoddi3.o(.literal .text)
+    *libgcc.a:_udivdi3.o(.literal .text)
     *libsmartconfig.a:(.literal .text .literal.* .text.*)
     *(.irom0.literal .irom.literal .irom.text.literal .irom0.text .irom.text .irom.text.*)
     _irom0_text_end = ABSOLUTE(.);