linux-firmware: Update version from commit bbe4917 to c4c07a8

It contains updated firmware for Intel graphics devices [1].

[1] https://01.org/linuxgraphics/intel-linux-graphics-firmwares

linux-firmware.be0

@@ -1,6 +1,6 @@
 #!/usr/bin/env beesh
 
-# BEE_VERSION linux-firmware-0_t1449454640_bbe4917-0
+# BEE_VERSION linux-firmware-0_t1473948036_c4c07a8-0
 
 # ***** created by *****
 #
@@ -15,7 +15,7 @@
 ## The source URL(s) define the location of the sources that will be
 ## downloaded. Version variables may be used to simplify reuse of this bee-file.
 
-SRCURL[0]="/src/mariux/beeroot/downloads/linux-firmware-0_t1449454640_bbe4917.tar.bz2"
+SRCURL[0]="/src/mariux/beeroot/downloads/linux-firmware-0_t1473948036_c4c07a8.tar.bz2"
 
 ###############################################################################
 ## Add URLs/pathes to patch files to the PATCHURL array.