Consolidate bool type

'bool' is defined in random places. This patch consolidates them into a
single header file include/linux/types.h, using stdbool.h introduced in C99.

All other #define, typedef and enum are removed. They are all consistent with
true = 1, false = 0.

Replace FALSE, False with false. Replace TRUE, True with true.
Skip *.py, *.php, lib/* files.

Signed-off-by: York Sun <yorksun@freescale.com>
diff --git a/board/matrix_vision/mvblx/mvblx.c b/board/matrix_vision/mvblx/mvblx.c
index 49af384..3ea15a1 100644
--- a/board/matrix_vision/mvblx/mvblx.c
+++ b/board/matrix_vision/mvblx/mvblx.c
@@ -162,7 +162,7 @@
 
 int overwrite_console(void)
 {
-	/* return TRUE if console should be overwritten */
+	/* return true if console should be overwritten */
 	return 0;
 }