mb/amd: Fix typos

Change-Id: I9abc0837b72b13e7614ecffa5b21c3d4bf41d0f8
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39080
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/mainboard/amd/gardenia/irq_tables.c

@@ -76,7 +76,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq_info = (void *)(&pirq->checksum + 1);
 	slot_num = 0;
 
-	/* pci bridge */
+	/* PCI bridge */
 	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);

src/mainboard/amd/padmelon/gpio.c

@@ -24,7 +24,7 @@
  * ramstage.
  */
 static const struct soc_amd_gpio gpio_set_stage_reset[] = {
-	/* GFX presense detect */
+	/* GFX presence detect */
 	PAD_GPI(GPIO_9, PULL_DOWN),
 	/* VDDP_VCTRL */
 	PAD_GPO(GPIO_40, HIGH),