HV: Refine two log info about vcpu and instr_emul

We have two same log message in decode_instruction. It's a little bit confusing.
So, this patch refine the log message to make it more explicit.

BTW, we refine one message in create_vcpu.

Tracked-On: #1136

Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>

Author: KaigeFu

hypervisor/arch/x86/guest/instr_emul.c

@@ -2240,7 +2240,7 @@ int decode_instruction(struct vcpu *vcpu)
 	retval = vie_init(&emul_ctxt->vie, vcpu);
 	if (retval < 0) {
 		if (retval != -EFAULT) {
-			pr_err("decode instruction failed @ 0x%016llx:",
+			pr_err("init vie failed @ 0x%016llx:",
 				vcpu_get_rip(vcpu));
 		}
 		return retval;

hypervisor/arch/x86/guest/vcpu.c

@@ -182,7 +182,7 @@ int create_vcpu(uint16_t pcpu_id, struct vm *vm, struct vcpu **rtn_vcpu_handle)
 	ASSERT(vm != NULL, "");
 	ASSERT(rtn_vcpu_handle != NULL, "");
 
-	pr_info("Creating VCPU %hu", pcpu_id);
+	pr_info("Creating VCPU working on PCPU%hu", pcpu_id);
 
 	/* Allocate memory for VCPU */
 	vcpu = calloc(1U, sizeof(struct vcpu));