kernel: fix a build regression in the ld-version script fix

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48324

target/linux/generic/patches-4.4/010-Kbuild-don-t-hardcode-path-to-awk-in-scripts-ld-vers.patch

@@ -10,9 +10,15 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
 
 --- a/scripts/ld-version.sh
 +++ b/scripts/ld-version.sh
-@@ -1,4 +1,4 @@
+@@ -1,8 +1,10 @@
 -#!/usr/bin/awk -f
-+#!/usr/bin/env awk -f
++#!/bin/sh
  # extract linker version number from stdin and turn into single number
++exec awk '
  	{
  	gsub(".*)", "");
+ 	split($1,a, ".");
+ 	print a[1]*10000000 + a[2]*100000 + a[3]*10000 + a[4]*100 + a[5];
+ 	exit
+ 	}
++'