switch arm 32 bit arch from armv5tel to armv6l

we have no supported armv5tel board left so we can switch to the higher
arch. This now can use the vpu (still in softfp calling convention to
not break existing installations.)
this fix many compile problems, also boost is now working again.

Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>

src/initscripts/system/sysctl

@@ -28,7 +28,7 @@ case "${1}" in
 		case "${arch}" in
 			i?86 )	arch="i586";
 				;;
-			armv*)	arch="armv5tel":
+			armv*)	arch="armv6l":
 				;;
 		esac
 		if [ -f "/etc/sysctl-${arch}.conf" ]; then