ACPICA: Unix: Cleanup to use ACPI_TO_INTEGER() to calc page offset.

ACPICA commit 9e2d8180f4d5e61949b17513bae8aff6412f62dd

The offset calculation needn't convert a pointer to a special integer type.
So this patch uses ACPI_TO_INTEGER() instead.

This patch only affects acpidump tool.

Link: https://github.com/acpica/acpica/commit/9e2d8180Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

tools/power/acpi/os_specific/service_layers/osunixmap.c

@@ -146,6 +146,6 @@ void acpi_os_unmap_memory(void *where, acpi_size length)
 	acpi_size page_size;
 
 	page_size = acpi_os_get_page_size();
-	offset = (acpi_physical_address) where % page_size;
+	offset = ACPI_TO_INTEGER(where) % page_size;
 	munmap((u8 *)where - offset, (length + offset));
 }