uclibc: use the ARC-specific uClibc by default on ARC

Following the switch to uClibc-ng as the default library, uClibc-ng
was also used as the default on ARC, while we actually want to use the
ARC specific version by default on this architecture.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/uclibc/Config.in

@@ -18,7 +18,7 @@ config BR2_UCLIBC_VERSION_SUPPORTS_NPTL
 
 choice
 	prompt "uClibc C library Version"
-	default BR2_UCLIBC_VERSION_NG
+	default BR2_UCLIBC_VERSION_NG if !BR2_arc
 	help
 	  Select the version of uClibc you wish to use.