libsigrok: bump commit hash

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

package/libsigrok/libsigrok.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBSIGROK_VERSION = 55462b8ba9f48931de9b9a7bfbc182a1d113b3b5
+LIBSIGROK_VERSION = fe473123ba836445d477149f2e2c0ae372fc0c4c
 # No https access on upstream git
 LIBSIGROK_SITE = git://sigrok.org/libsigrok
 LIBSIGROK_LICENSE = GPLv3+