Misspelled AppName string in tbl CFE_TBL_Validate function

[moschleg]

Describe the bug
The CFE_TBL_Validate( CFE_TBL_Handle_t TblHandle ) has a misspelling in the AppName string "UNKNWON"

To Reproduce
Directly visible in cfe\fsw\cfe-core\src\tbl\cfe_tbl_api.c -- int32 CFE_TBL_Validate( CFE_TBL_Handle_t TblHandle )

Expected behavior
The AppName array should be initialized to the same, consistent string 'UNKNOWN' as elsewhere in the code. However in the usual case, the AppName would almost immediately be replaced with the valid CFE_ES_GetAppName() value upon passing CFE_TBL_ValidateAccess() and would not have much impact other than test logging.

Code snips
cfe/fsw/cfe-core/src/tbl/cfe_tbl_api.c

int32 CFE_TBL_Validate( CFE_TBL_Handle_t TblHandle )
{
    int32                       Status;
    uint32                      ThisAppId;
    CFE_TBL_RegistryRec_t      *RegRecPtr;
    CFE_TBL_AccessDescriptor_t *AccessDescPtr;
    char                        AppName[OS_MAX_API_NAME]={"UNKNWON"};

System observed on:
noticed on code inspection

Additional context

Reporter Info
Mark O. Schlegel, Hammers Inc