[xen staging-4.19] update Xen version to 4.19.4

[patchbot@xxxxxxx]

commit ac1c1fb9e890da2f030c3427672e6f737478700b
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Thu Dec 4 10:51:21 2025 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Dec 4 10:51:21 2025 +0100

    update Xen version to 4.19.4
---
 xen/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/Makefile b/xen/Makefile
index 4201eb4d16..1a484cd6e6 100644
--- a/xen/Makefile
+++ b/xen/Makefile
@@ -6,7 +6,7 @@ this-makefile := $(call lastword,$(MAKEFILE_LIST))
 # All other places this is stored (eg. compile.h) should be autogenerated.
 export XEN_VERSION       = 4
 export XEN_SUBVERSION    = 19
-export XEN_EXTRAVERSION ?= .4-pre$(XEN_VENDORVERSION)
+export XEN_EXTRAVERSION ?= .4$(XEN_VENDORVERSION)
 export XEN_FULLVERSION   = $(XEN_VERSION).$(XEN_SUBVERSION)$(XEN_EXTRAVERSION)
 -include xen-version
 
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generated by git-patchbot for /home/xen/git/xen.git#staging-4.19