KVM: PPC: Book3S HV: Rename current DAWR macros and variables

Power10 is introducing a second DAWR (Data Address Watchpoint
Register). Use real register names (with suffix 0) from ISA for
current macros and variables used by kvm.  One exception is
KVM_REG_PPC_DAWR.  Keep it as it is because it's uapi so changing it
will break userspace.

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 2b9b685..cf52081 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -583,8 +583,8 @@ struct kvm_vcpu_arch {
 	u32 ctrl;
 	u32 dabrx;
 	ulong dabr;
-	ulong dawr;
-	ulong dawrx;
+	ulong dawr0;
+	ulong dawrx0;
 	ulong ciabr;
 	ulong cfar;
 	ulong ppr;