blackfin: don't use 'bool' when it causes problems

The use of 'bool' data types in globally used header files cases build
errors like this:

In file included from arch/blackfin/include/asm/blackfin.h:13:0,
                 from include/common.h:92,
                 from cmd_test.c:17:
arch/blackfin/include/asm/blackfin_local.h:54:1: error: unknown type name 'bool'

Use plain 'int' instead to avoid such kind of trouble.
Signed-off-by: NWolfgang Denk <wd@denx.de>

arch/blackfin/cpu/os_log.c

@@ -12,12 +12,12 @@
 #define OS_LOG_MAGIC_ADDR  ((unsigned long *)0x4f0)
 #define OS_LOG_PTR_ADDR    ((char **)0x4f4)
 
-bool bfin_os_log_check(void)
+int bfin_os_log_check(void)
 {
 	if (*OS_LOG_MAGIC_ADDR != OS_LOG_MAGIC)
-		return false;
+		return 0;
 	*OS_LOG_MAGIC_ADDR = 0;
-	return true;
+	return 1;
 }
 
 void bfin_os_log_dump(void)

arch/blackfin/include/asm/blackfin_local.h

@@ -51,7 +51,7 @@ extern u_long get_dclk(void);
 
 # define bfin_revid() (bfin_read_CHIPID() >> 28)
 
-extern bool bfin_os_log_check(void);
+extern int bfin_os_log_check(void);
 extern void bfin_os_log_dump(void);
 
 extern void blackfin_icache_flush_range(const void *, const void *);