将sighook和sigunhook 两个定义移到 porting/linux/user/include/signal.h文件中

Signed-off-by: NshuxinyiA <zhangcui11@huawei.com>

arch/arm/bits/signal.h

@@ -82,7 +82,6 @@ typedef struct __ucontext {
 #define SIGPWR    30
 #define SIGSYS    31
 #define SIGUNUSED SIGSYS
-#define SIGHOOK   36
-#define SIGUNHOOK 37
+
 
 #define _NSIG 65

porting/linux/user/include/signal.h

@@ -40,6 +40,8 @@ extern "C" {
 #define SI_QUEUE (-1)
 #define SI_USER 0
 #define SI_KERNEL 128
+#define SIGHOOK   36
+#define SIGUNHOOK 37
 
 typedef struct sigaltstack stack_t;