KVM: PPC: Book3S HV: Add H_VIRT mapping for tracing exits

The macro kvm_trace_symbol_exit is used for providing the mappings
for the trap vectors and their names. Add mapping for H_VIRT so that
trap reason is displayed as string instead of a vector number when using
the kvm_guest_exit tracepoint.

Signed-off-by: Gautam Menghani <gautam@linux.ibm.com>
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20250516121225.276466-1-gautam@linux.ibm.com

Author: Gautam Menghani

arch/powerpc/kvm/trace_book3s.h

@@ -25,6 +25,7 @@
 	{0xe00, "H_DATA_STORAGE"}, \
 	{0xe20, "H_INST_STORAGE"}, \
 	{0xe40, "H_EMUL_ASSIST"}, \
+	{0xea0, "H_VIRT"}, \
 	{0xf00, "PERFMON"}, \
 	{0xf20, "ALTIVEC"}, \
 	{0xf40, "VSX"}