soc/amd/cezanne,picasso/reset: use byte I/O read for NCP_ERR

NCP_ERR is a 1 byte register in I/O-space, so use inb and not inw. The
variable the result gets assigned to is also a uint8_t.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I9fd8c139004111d6227c0316ba2a8b0281541654
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54736
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

src/soc/amd/cezanne/reset.c

@@ -10,7 +10,7 @@
 /* TODO: is NCP_ERR still valid?  It appears reserved and always 0xff.  b/184281092 */
 void set_warm_reset_flag(void)
 {
-	uint8_t ncp = inw(NCP_ERR);
+	uint8_t ncp = inb(NCP_ERR);
 
 	outb(NCP_ERR, ncp | NCP_WARM_BOOT);
 }

src/soc/amd/picasso/reset.c

@@ -9,7 +9,7 @@
 
 void set_warm_reset_flag(void)
 {
-	uint8_t ncp = inw(NCP_ERR);
+	uint8_t ncp = inb(NCP_ERR);
 
 	outb(NCP_ERR, ncp | NCP_WARM_BOOT);
 }