package/uclibc: add missing hash for eXtensa

This is a git snapshot, we can't have a hash for it.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Gustavo Zacarias <gustavo@zacarias.com.ar>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Tested-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/uclibc/uclibc.hash

@@ -6,3 +6,6 @@ sha256	0a9085a11615296cfe7783f16ff29073393eb330749947adece0eeddb31705a4	uClibc-a
 
 # From http://www.uclibc-ng.org/trac/
 sha256  7e92e99995daa634cbdc63c297784df6e8fe39cc1d3bbd2d37eb5c3ced8a86e5        uClibc-ng-1.0.2.tar.xz
+
+# No hash for this git snapshot
+none  xxx  uClibc-7bf35c8b7d4a1f97174eb49f47f33946b282114c.tar.gz