vect: Set counts of early break exit blocks correctly [PR117790]

vect: Set counts of early break exit blocks correctly [PR117790]

This adds missing code to correctly set the counts of the exit blocks we
create when building the CFG for a vectorized early break loop.

gcc/ChangeLog:

	PR tree-optimization/117790
	* tree-vect-loop-manip.cc (slpeel_tree_duplicate_loop_to_edge_cfg):
	Set profile counts for {main,alt}_loop_exit_block.