linux-user/syscall: Constify bitmask_transtbl fcntl/mmap flags_tlb[]

Keep bitmask_transtbl in .rodata by marking the arrays const.

Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210517055243.830491-1-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index c9f8120..974dd46 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -365,7 +365,7 @@
 _syscall2(int, membarrier, int, cmd, int, flags)
 #endif
 
-static bitmask_transtbl fcntl_flags_tbl[] = {
+static const bitmask_transtbl fcntl_flags_tbl[] = {
   { TARGET_O_ACCMODE,   TARGET_O_WRONLY,    O_ACCMODE,   O_WRONLY,    },
   { TARGET_O_ACCMODE,   TARGET_O_RDWR,      O_ACCMODE,   O_RDWR,      },
   { TARGET_O_CREAT,     TARGET_O_CREAT,     O_CREAT,     O_CREAT,     },
@@ -6062,7 +6062,7 @@
     .print = print_termios,
 };
 
-static bitmask_transtbl mmap_flags_tbl[] = {
+static const bitmask_transtbl mmap_flags_tbl[] = {
     { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
     { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
     { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },