Kconfig: update version to 8.0-rc1

Signed-off-by: Adam Wujek <dev_public@wujek.eu>

Kconfig

@@ -3,7 +3,7 @@ mainmenu "White Rabbit Switch  configuration"
 
 config DOTCONF_FW_VERSION
 	string "Firmware version"
-	default "7.0"
+	default "8.0-rc1"
 	help
 	  Free-text information about switch's firmware version. This field is
 	  for information purpose only. Additionally this field describes

configs/wrs_release_defconfig

@@ -2,7 +2,7 @@
 # Automatically generated file; DO NOT EDIT.
 # White Rabbit Switch  configuration
 #
-CONFIG_DOTCONF_FW_VERSION="7.0"
+CONFIG_DOTCONF_FW_VERSION="8.0-rc1"
 CONFIG_DOTCONF_HW_VERSION=""
 CONFIG_DOTCONF_INFO=""
 # CONFIG_DOTCONF_SOURCE_LOCAL is not set