KVM: x86: Add missing MODULE_DESCRIPTION() macros

Add module descriptions for the vendor modules to fix allmodconfig
'make W=1' warnings:

  WARNING: modpost: missing MODULE_DESCRIPTION() in arch/x86/kvm/kvm-intel.o
  WARNING: modpost: missing MODULE_DESCRIPTION() in arch/x86/kvm/kvm-amd.o

Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20240622-md-kvm-v2-1-29a60f7c48b1@quicinc.com
[sean: split kvm.ko change to separate commit]
Signed-off-by: Sean Christopherson <seanjc@google.com>

Author: Jeff Johnson

arch/x86/kvm/svm/svm.c

@@ -53,6 +53,7 @@
 #include "svm_onhyperv.h"
 
 MODULE_AUTHOR("Qumranet");
+MODULE_DESCRIPTION("KVM support for SVM (AMD-V) extensions");
 MODULE_LICENSE("GPL");
 
 #ifdef MODULE

arch/x86/kvm/vmx/vmx.c

@@ -74,6 +74,7 @@
 #include "posted_intr.h"
 
 MODULE_AUTHOR("Qumranet");
+MODULE_DESCRIPTION("KVM support for VMX (Intel VT-x) extensions");
 MODULE_LICENSE("GPL");
 
 #ifdef MODULE