x86/PVH: mark pvh_setup_mmcfg() __init

Its sole caller is, and the wrong annotation would cause a build failure
(non-empty .text) if the compiler chose to not inline the function when at
the same time LATE_HWDOM=y.

Fixes: be52cb139f ("x86/mmcfg: add handlers for the PVH Dom0 MMCFG areas")
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
master commit: bdd5f35cf2
master date: 2026-01-08 11:05:30 +0100

xen/arch/x86/hvm/dom0_build.c

@@ -1310,7 +1310,7 @@ static int __init pvh_setup_acpi(struct domain *d, paddr_t start_info)
     return 0;
 }
 
-static void __hwdom_init pvh_setup_mmcfg(struct domain *d)
+static void __init pvh_setup_mmcfg(struct domain *d)
 {
     unsigned int i;
     int rc;