fix bug in stage 2 search

boot0.s

@@ -172,7 +172,7 @@ bits 16
   cmp word [bp - 0x16], 0   ; Load number of sectors loaded
   je .load_first_lba
   ; If there's still more entries in the current sector, skip loading a new sector
-  mov ax, [bp - 0x18]       ; Load current entry index within the current sector
+  mov ax, [bp - 0x14]       ; Load current entry index within the current sector
   cmp [bp - 0x10], ax       ; Compare to entries per sector
   ja .process_current_entry