package/gdb: make gdb 9.2 the default version

Now that we have added gdb 10.1, let's switch to using gdb 9.2 as the
default version.

Noe that there previously was a discrepancy between the default when a
host gdb was enabled, and when it was not: in the ofrmer case, the
default was 8.3.x, while for the latter it was 8.2.x. Now both are
aligned to 9.2.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
[yann.morin.1998@free.fr: add blurb about previous version discrepancy]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/gdb/Config.in.host

@@ -63,7 +63,7 @@ config BR2_PACKAGE_HOST_GDB_SIM
 
 choice
 	prompt "GDB debugger Version"
-	default BR2_GDB_VERSION_8_3
+	default BR2_GDB_VERSION_9_2
 	depends on !BR2_arc
 	depends on !BR2_csky
 	help
@@ -90,8 +90,8 @@ config BR2_GDB_VERSION
 	string
 	default "arc-2020.09-release-gdb" if BR2_arc
 	default "4ecb98fbc2f94dbe01b69384afbc515107de73df" if BR2_csky
-	default "8.2.1"    if BR2_GDB_VERSION_8_2 || !BR2_PACKAGE_HOST_GDB
+	default "8.2.1"    if BR2_GDB_VERSION_8_2
 	default "8.3.1"    if BR2_GDB_VERSION_8_3
-	default "9.2"      if BR2_GDB_VERSION_9_2
+	default "9.2"      if BR2_GDB_VERSION_9_2 || !BR2_PACKAGE_HOST_GDB
 	default "10.1"	   if BR2_GDB_VERSION_10
 	depends on BR2_PACKAGE_GDB || BR2_PACKAGE_HOST_GDB