Update bitlash.h

[murilopontes]

fix warning bitlash/src/bitlash.h:134:0: warning: "prog_uchar" redefined [enabled by default]

[matthijskooijman]

Hmm, doesn't removing those defines from the arm build break the arm build?

Also, I have a fairly thoroug restructure of things coming up in #31, which will also fix this particular warning (as well as a bunch of others). It would be easier to just wait for that series to be completed, if we merge this pullrequest I'll have to update a dozen patches in my series, I think.

[murilopontes]

@matthijskooijman do not break, this defined is redudant.

I try to solve more warnings.
Full list of warnings is following.

In file included from ..\src\bitlash\src/bitlash-cmdline.c:36:0,
from ..\src\bitlash\bitlash.cpp:49:
..\src\bitlash\src/bitlash.h:723:16: warning: extra tokens at end of #ifndef directive [enabled by default]
#ifndef GPIOR0 || GPIOR1
^
..\src\bitlash\src/bitlash-functions.c: In function 'void dofunctioncall(uint8_t)':
..\src\bitlash\src/bitlash.h:422:37: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
#define pgm_read_word(b) (*(int *)(b))
^
..\src\bitlash\src/bitlash-functions.c:493:26: note: in expansion of macro 'pgm_read_word'
fp = (bitlash_function) pgm_read_word(&function_table[entry]);
^
In file included from ..\src\bitlash\bitlash.cpp:58:0:
..\src\bitlash\src/bitlash-taskmgr.c: In function 'long unsigned int millisUntilNextTask()':
..\src\bitlash\src/bitlash-taskmgr.c:122:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if (waketime[slot] < next_wake_time) next_wake_time = waketime[slot];
^

[matthijskooijman]

From the warnings you pasted, the first one about GPIO, I've already solved in my pullrequest. For the other two, I don't have fixes yet, so I'm happy to get fixes for that.