[VTPM] VTPM manager -- Fix parameter check

If vtpm_managed is started with the same vtpm instance, the following
error occurs.

++++++++++++
Loading NVM.
Sending LoadNVM command
INFO[VTSP]: Unbinding 256 bytes of data.
ERROR in VTSP_Unbind at vtsp.c:719 code: TPM_BAD_PARAMETER.
ERROR in envelope_decrypt at securestorage.c:156
code:TPM_BAD_PARAMETER.
ERROR[VTPM]: Failed to envelope decrypt data
.ERROR in VTPM_Handle_Load_NVM at securestorage.c:284 code:
TPM_BAD_PARAMETER.
ERROR[VTPM]: Failed to load NVM
.INFO[VTPM]: [VTPM Listener]: VTPM Listener waiting for messages.
Reading LoadNVM header
++++++++++++

Signed-off-by: Kouichi YASAKI <yasaki.kouichi@jp.fujitsu.com>

     1.1 --- a/tools/vtpm_manager/tcs/tcs.c	Tue Sep 18 15:05:38 2007 +0100
     1.2 +++ b/tools/vtpm_manager/tcs/tcs.c	Tue Sep 18 15:06:20 2007 +0100
     1.3 @@ -775,7 +775,7 @@ TPM_RESULT TCSP_UnBind(TCS_CONTEXT_HANDL
     1.4    TDDL_UINT32  OutLength = TCPA_MAX_BUFFER_LENGTH;
     1.5    
     1.6    // check input params
     1.7 -  if (inData == NULL || privAuth == NULL || outDataSize == NULL || *outData == NULL)
     1.8 +  if (inData == NULL || privAuth == NULL || outDataSize == NULL || outData == NULL)
     1.9      return TPM_BAD_PARAMETER;
    1.10    
    1.11    // Convert Byte Input parameter in the input byte stream InBuf