Fix code that would trip -Wtype-limits

This patch fixes up all code that would throw a -Wtype-limits warning.
This sometimes involves eliminating unnecessary checks, adding a few odd
but harmless casts or just pragma'ing out the warning for a whole file
-- I tried to find the path of least resistance. I think the overall
benefit of the warning outweighs the occasional weirdness.

Change-Id: Iacd37eb1fad388d9db7267ceccb03e6dcf1ad0d2
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32537
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/intel/broadwell/lpc.c b/src/soc/intel/broadwell/lpc.c
index 8438ab4..7679724 100644
--- a/src/soc/intel/broadwell/lpc.c
+++ b/src/soc/intel/broadwell/lpc.c
@@ -502,7 +502,7 @@
 #define LPC_DEFAULT_IO_RANGE_LOWER 0
 #define LPC_DEFAULT_IO_RANGE_UPPER 0x1000
 
-static inline int pch_io_range_in_default(u16 base, u16 size)
+static inline int pch_io_range_in_default(int base, int size)
 {
 	/* Does it start above the range? */
 	if (base >= LPC_DEFAULT_IO_RANGE_UPPER)