pcie: fix typo in comments

Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

hw/pci/pcie.c

@@ -656,7 +656,7 @@ static void pcie_ext_cap_set_next(PCIDevice *dev, uint16_t pos, uint16_t next)
 }
 
 /*
- * caller must supply valid (offset, size) * such that the range shouldn't
+ * Caller must supply valid (offset, size) such that the range wouldn't
  * overlap with other capability or other registers.
  * This function doesn't check it.
  */