Title: Fix the test case named of ActsToolChainTest in Rk3566

Description: Modifying the function of checking fd(file descriptor) from  to  to avoid failing test case in Rk3566

Issue: https://gitee.com/openharmony/xts_acts/issues/I7AFUP

Test: run xts suite on Rk3566 until the failure is not returned in `open` test case
Signed-off-by: zzulilyw <378305181@qq.com>

libc-test/src/functionalext/supplement/fcntl/open.c

@@ -32,7 +32,7 @@ void open_0100(void)
     int fd = open(path, O_RDONLY + O_CREAT);
     int len = write(fd, s, sizeof(s));
     ssize_t size = read(fd, buffer, sizeof(buffer));
-    EXPECT_EQ("open_0100", fd, 4);
+    EXPECT_MT("open_0100", fd, 2);
     EXPECT_EQ("open_0100", len, -1);
     EXPECT_STREQ("open_0100", buffer, "");
 
@@ -62,7 +62,7 @@ void open_0300(void)
     char buffer[80] = {0};
     int fd = open(path, O_WRONLY + O_CREAT);
     ssize_t size = read(fd, buffer, sizeof(buffer));
-    EXPECT_EQ("open_0300", fd, 4);
+    EXPECT_MT("open_0300", fd, 2);
     EXPECT_STREQ("open_0300", buffer, "");
     int len = write(fd, s, sizeof(s));
     EXPECT_EQ("open_0300", len, 5);
@@ -92,7 +92,7 @@ void open_0500(void)
     char buffer[80] = {0};
     int fd = open(path, O_RDWR | O_APPEND + O_CREAT);
     ssize_t size = read(fd, buffer, sizeof(buffer));
-    EXPECT_EQ("open_0500", fd, 4);
+    EXPECT_MT("open_0500", fd, 2);
     EXPECT_STREQ("open_0500", buffer, "");
     int len = write(fd, s, sizeof(s));
     EXPECT_EQ("open_0500", len, 5);
@@ -140,7 +140,7 @@ void open_0800(void)
     char buffer[80] = {0};
     int fd = open(path, O_RDWR | O_CREAT);
     ssize_t size = read(fd, buffer, sizeof(buffer));
-    EXPECT_EQ("open_0800", fd, 4);
+    EXPECT_MT("open_0800", fd, 2);
     EXPECT_STREQ("open_0800", buffer, "");
     int len = write(fd, s, sizeof(s));
     EXPECT_EQ("open_0800", len, 5);
@@ -159,7 +159,7 @@ void open_0900(void)
     char buffer[80] = {0};
     int fd = open(path, O_RDWR | O_CLOEXEC + O_CREAT);
     ssize_t size = read(fd, buffer, sizeof(buffer));
-    EXPECT_EQ("open_0900", fd, 4);
+    EXPECT_MT("open_0900", fd, 2);
     EXPECT_STREQ("open_0900", buffer, "");
     int len = write(fd, s, sizeof(s));
     EXPECT_EQ("open_0900", len, 5);
@@ -188,4 +188,4 @@ int main(int argc, char *argv[])
     }
 
     return t_status;
-}
\ No newline at end of file
+}