osmo_float_str_to_int: When using strtoll(), use LLONG_{MAX,MIN}

When we use strtoll(), the return type is "long long" and we cannot
compare against LONG_MAX and LONG_MIN but must compare against LLONG_MAX
and LLONG_MIN.

Change-Id: I9c18ac237b4aacd56639d1faffa6841c8ad7b8da
Closes: OS#4787
diff --git a/src/utils.c b/src/utils.c
index c0ab166..7fd7223 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -1263,7 +1263,7 @@
 	if (!point || point > str) {
 		errno = 0;
 		integer = strtoll(str, &endptr, 10);
-		if ((errno == ERANGE && (integer == LONG_MAX || integer == LONG_MIN))
+		if ((errno == ERANGE && (integer == LLONG_MAX || integer == LLONG_MIN))
 		    || (errno != 0 && integer == 0))
 			return -ERANGE;
 
@@ -1295,7 +1295,7 @@
 		}
 		errno = 0;
 		decimal = strtoll(decimal_str + skip_digits, &endptr, 10);
-		if ((errno == ERANGE && (decimal == LONG_MAX || decimal == LONG_MIN))
+		if ((errno == ERANGE && (decimal == LLONG_MAX || decimal == LLONG_MIN))
 		    || (errno != 0 && decimal == 0))
 			return -ERANGE;