target/ppc: Improve KVM hypercall trace

target/ppc: Improve KVM hypercall trace

Before:

  kvm_handle_papr_hcall handle PAPR hypercall
  kvm_handle_papr_hcall handle PAPR hypercall
  kvm_handle_papr_hcall handle PAPR hypercall
  kvm_handle_papr_hcall handle PAPR hypercall
  kvm_handle_papr_hcall handle PAPR hypercall
  kvm_handle_papr_hcall handle PAPR hypercall

After:

  kvm_handle_papr_hcall 0x3a8
  kvm_handle_papr_hcall 0x3ac
  kvm_handle_papr_hcall 0x108
  kvm_handle_papr_hcall 0x104
  kvm_handle_papr_hcall 0x104
  kvm_handle_papr_hcall 0x108

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20220325223316.276494-1-farosas@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>