lib/files: rm extra fopen() in library path
lib/files: rm extra fopen() in library path

Routine files_load_bytes_from_file_or_stdin() calls
files_load_bytes_from_path() when it already has an open FILE pointer, just
re-use that FILE * rather than invoking another fopen() call via
read_bytes_from_file().

Signed-off-by: William Roberts <60148e894dabf0b83bde1d460768794cd453c455@intel.com>

01org/tpm2.0-tools,01org/tpm2.0-tools,martinezjavier/tpm2-tools,martinezjavier/tpm2-tools,martinezjavier/tpm2-tools,martinezjavier/tpm2-tools,01org/tpm2.0-tools