Fix type in variable declarations

[tpatki]

In many places in Variorum, I see declarations made as unsigned var, without the datatype being explicitly specified.
This defaults to unsigned int , and is functionally correct (unsigned is a datatype), but is not considered good engineering practice, esp because we're not consistent with its usage. As part of cleanup, I'd like to change these from unsigned to unsigned int.

See here as some examples:

variorum/src/variorum/config_architecture.h

Lines 321 to 324 in f7bb01f

	void variorum_get_topology(
	unsigned *nsockets,
	unsigned *ncores,
	unsigned *nthreads,

variorum/src/variorum/Intel/counters_features.c

Lines 539 to 541 in f7bb01f

	unsigned i;
	char hostname[1024];
	unsigned nthreads;