kbuild: Make scripts/Configure follow the definition of 'int'

Currently, scripts/Configure has code for the 'int' verb to take a
min/max.  This violates the spec described in
Documentation/kbuild/config-language.txt.  It also requires that if a
default is outside of +/- 10,000,000 that defaults be provided, or
'config' and 'oldconfig' will get stuck.  The following removes the
support for a min/max from scripts/Configure.

(by Tom Rini)

scripts/Configure

@@ -415,25 +415,15 @@ function define_int () {
 #
 # int processes an integer argument with optional limits
 #
-#	int question define default [min max]
+#	int question define default
 #
 function int () {
 	old=$(eval echo "\${$2}")
 	def=${old:-$3}
-	if [ $# -gt 3 ]; then
-	  min=$4
-	else
-	  min=-10000000    # !!
-	fi
-	if [ $# -gt 4 ]; then
-	  max=$5
-	else
-	  max=10000000     # !!
-	fi
 	rndval $2
 	while :; do
 	  readln "$1 ($2) [$def] " "$def" "$old"
-	  if expr \( \( $ans + 0 \) \>= $min \) \& \( $ans \<= $max \) >/dev/null 2>&1 ; then
+	  if expr "$ans" : '[0-9]*$' > /dev/null; then
             define_int "$2" "$ans"
 	    break
           else