files: fix BE_CONVERT macro
files: fix BE_CONVERT macro

When the interface was changed to pass-by-value versus
pointers, BE_MACRO was not updated properly. Correct this
to suppress the warning:

../lib/files.c: In function ‘files_read_16’:
../lib/files.c:251:1: warning: passing argument 1 of ‘string_bytes_endian_convert_16’ makes integer from pointer without a cast [enabled by default]
FILE_READ(16);

Fixes #237

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

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