gdb: use 7.9 by default

Now that we have added 7.10, let's switch to 7.9 as the default gdb
version.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/gdb/Config.in.host

@@ -27,7 +27,7 @@ choice
 	prompt "GDB debugger Version"
 	depends on !BR2_arc
 	depends on !BR2_microblaze
-	default BR2_GDB_VERSION_7_8
+	default BR2_GDB_VERSION_7_9
 	help
 	  Select the version of gdb you wish to use.
 
@@ -55,6 +55,6 @@ config BR2_GDB_VERSION
 	default "arc-2015.06-gdb" if BR2_arc
 	default "6be65fb56ea6694a9260733a536a023a1e2d4d57" if BR2_microblaze
 	default "7.7.1"    if BR2_GDB_VERSION_7_7
-	default "7.8.2"	   if BR2_GDB_VERSION_7_8 || !BR2_PACKAGE_HOST_GDB
-	default "7.9.1"    if BR2_GDB_VERSION_7_9
+	default "7.8.2"	   if BR2_GDB_VERSION_7_8
+	default "7.9.1"    if BR2_GDB_VERSION_7_9 || !BR2_PACKAGE_HOST_GDB
 	default "7.10"     if BR2_GDB_VERSION_7_10