uclibc: bump xtensa snapshot version

This new version includes two xtensa fixes:

00571b43df2e libc: posix_fadvise: restore implementation for xtensa
de6561f66693 xtensa: use common ptrace.h

The first fixes (correctly)
http://autobuild.buildroot.net/results/ab1/ab1250c3d402ec3fbaf22eeffd07de218ffafb22/.

The second fixes
http://autobuild.buildroot.net/results/84f/84fb918efbcbf1312a228a9c11608edf096b3c40/.

The unifdef regression (the original motivation for the fixed xtensa snapshot
version introduced in commit cecaf09cd6) should now be fixed.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/uclibc/Config.in

@@ -43,7 +43,7 @@ config BR2_UCLIBC_VERSION_STRING
 	default 0.9.32.1	if BR2_UCLIBC_VERSION_0_9_32
 	default 0.9.33.2	if BR2_UCLIBC_VERSION_0_9_33
 	default "9f0f466d3b17181ce88be36ce24a775774fe686c" if BR2_arc
-	default "3a3ad3dfc10876b3648369f22df8fc06661ddef0" if BR2_UCLIBC_VERSION_XTENSA_GIT
+	default "7bf35c8b7d4a1f97174eb49f47f33946b282114c" if BR2_UCLIBC_VERSION_XTENSA_GIT
 	default BR2_USE_UCLIBC_SNAPSHOT	if BR2_UCLIBC_VERSION_SNAPSHOT
 
 config BR2_UCLIBC_CONFIG