Updated logic to use "%ld" and "%lld" format specifiers to read
64-bit integer from input files using fscanf function on Linux and
Windows respectively when the user set INT_SIZE='auto' on 64-bit
machine or INT_SIZE='64'. Otherwise "%d" on both windows and Linux
for benchmarking blis and LPGEMM.
Change-Id: I4762c4c1b3fcd09cf66d0cc9572d38766be6be60
(cherry picked from commit e4eed817aa)