vmh: fix allocation size value calculation

Allocation sizes were calculated with faulty logic. Bits to check
size calculation is not needed since array position was calculated
and loop should go from this position to array end.

Signed-off-by: Jakub Dabek <jakub.dabek@intel.com>

Author: dabekjakub

zephyr/lib/regions_mm.c

@@ -552,20 +552,14 @@ int vmh_free(struct vmh_heap *heap, void *ptr)
 			return -EINVAL;
 
 		if (bit_value) {
-			/* We know we have more than one block was allocated so
-			 * we need to find the size
-			 */
-			size_t bits_to_check =
-				heap->physical_blocks_allocators
-					[mem_block_iter]->info.num_blocks - ptr_bit_array_position;
-
 			/* Neeeeeeeds optimization - thinking how to do it properly
 			 * each set bit in order after another means one allocated block.
 			 * When we get to 0 in such range we know that is last allocated block.
 			 * Testing bundles looks promising - need to investigate.
 			 */
 			for (i = ptr_bit_array_position;
-				i < bits_to_check;
+				i < heap->physical_blocks_allocators
+					[mem_block_iter]->info.num_blocks;
 				i++) {
 
 				sys_bitarray_test_bit(heap->allocation_sizes[mem_block_iter], i,