src/[arch-lib]: change "unsigned" to "unsigned int"

Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: Ibb7b48a7a144421aff29acbb7ac30968ae5fe5ab
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36329
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

src/drivers/amd/agesa/s3_mtrr.c

@@ -19,7 +19,7 @@
 #include <string.h>
 #include <northbridge/amd/agesa/agesa_helper.h>
 
-static void write_mtrr(u8 **p_nvram_pos, unsigned idx)
+static void write_mtrr(u8 **p_nvram_pos, unsigned int idx)
 {
 	msr_t  msr_data;
 	msr_data = rdmsr(idx);