[PATCH] tools/libs: guest: Fix Arm build after 8fc4916daf2a

[Julien Grall <julien@xxxxxxx>]

From: Julien Grall <jgrall@xxxxxxxxxx>

Gitlab CI spotted an issue when building the tools Arm:

xg_dom_arm.c: In function 'meminit':
xg_dom_arm.c:401:50: error: passing argument 3 of 'set_mode' discards 'const' 
qualifier from pointer target type [-Werror=discarded-qualifiers]
  401 |     rc = set_mode(dom->xch, dom->guest_domid, dom->guest_type);
      |                                               ~~~^~~~~~~~~~~~

This is because the const was not propagated in the Arm code. Fix it
by constifying the 3rd parameter of set_mode().

Fixes: 8fc4916daf2a ("tools/libs: guest: Use const whenever we point to literal 
strings")
Signed-off-by: Julien Grall <jgrall@xxxxxxxxxx>
---
 tools/libs/guest/xg_dom_arm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/libs/guest/xg_dom_arm.c b/tools/libs/guest/xg_dom_arm.c
index b4c24f15fb27..01e85e0ea9c7 100644
--- a/tools/libs/guest/xg_dom_arm.c
+++ b/tools/libs/guest/xg_dom_arm.c
@@ -195,7 +195,7 @@ static int vcpu_arm64(struct xc_dom_image *dom)
 
 /* ------------------------------------------------------------------------ */
 
-static int set_mode(xc_interface *xch, uint32_t domid, char *guest_type)
+static int set_mode(xc_interface *xch, uint32_t domid, const char *guest_type)
 {
     static const struct {
         char           *guest;
-- 
2.17.1