target/device: enable uclibc globbing support

Enable UCLIBC_HAS_GNU_GLOB like in the generic config for target specific
uclibc configs. Fixes globbing issue reported on the uclibc list.

target/device/ARMLTD/uClibc.integrator926.config

@@ -174,7 +174,7 @@ UCLIBC_HAS_FNMATCH=y
 # UCLIBC_HAS_WORDEXP is not set
 # UCLIBC_HAS_FTW is not set
 UCLIBC_HAS_GLOB=y
-# UCLIBC_HAS_GNU_GLOB is not set
+UCLIBC_HAS_GNU_GLOB=y
 
 #
 # Library Installation Options

target/device/Atmel/uClibc.config.avr32

@@ -163,7 +163,7 @@ UCLIBC_HAS_FNMATCH_OLD=y
 UCLIBC_HAS_WORDEXP=y
 UCLIBC_HAS_FTW=y
 UCLIBC_HAS_GLOB=y
-# UCLIBC_HAS_GNU_GLOB is not set
+UCLIBC_HAS_GNU_GLOB=y
 
 #
 # Library Installation Options

target/device/valka/v100sc2/uClibc.config

@@ -164,7 +164,7 @@ UCLIBC_HAS_FNMATCH_OLD=y
 UCLIBC_HAS_WORDEXP=y
 UCLIBC_HAS_FTW=y
 UCLIBC_HAS_GLOB=y
-# UCLIBC_HAS_GNU_GLOB is not set
+UCLIBC_HAS_GNU_GLOB=y
 
 #
 # Library Installation Options