powerpc/xmon: Dump all 64 bits of HDEC

ISA 3.0 defines hypervisor decrementer to be 64 bits in length.
This patch extends the print format for to be 64 bits.
Signed-off-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/xmon/xmon.c

@@ -1749,7 +1749,7 @@ static void dump_206_sprs(void)
 
 	printf("sdr1   = %.16lx  hdar  = %.16lx hdsisr = %.8x\n",
 		mfspr(SPRN_SDR1), mfspr(SPRN_HDAR), mfspr(SPRN_HDSISR));
-	printf("hsrr0  = %.16lx hsrr1  = %.16lx hdec = %.8x\n",
+	printf("hsrr0  = %.16lx hsrr1  = %.16lx hdec = %.16lx\n",
 		mfspr(SPRN_HSRR0), mfspr(SPRN_HSRR1), mfspr(SPRN_HDEC));
 	printf("lpcr   = %.16lx  pcr   = %.16lx lpidr = %.8x\n",
 		mfspr(SPRN_LPCR), mfspr(SPRN_PCR), mfspr(SPRN_LPID));