s390: remove kvm_types.h from Kbuild

kvm_types.h is mandatory in include/asm-generic/Kbuild so having it
in another Kbuild file causes a warning. Remove it from the arch/
Kbuild file to fix the warning.

../scripts/Makefile.asm-headers:39: redundant generic-y found in ../arch/s390/include/asm/Kbuild: kvm_types.h

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20260203184204.1329414-1-rdunlap@infradead.org

Author: rddunlap

arch/s390/include/asm/Kbuild

@@ -5,6 +5,5 @@ generated-y += syscall_table.h
 generated-y += unistd_nr.h
 
 generic-y += asm-offsets.h
-generic-y += kvm_types.h
 generic-y += mcs_spinlock.h
 generic-y += mmzone.h