reset: simple: remove ZTE details in Kconfig help

The ZTE platform support in the simple reset driver has been
removed but the comment in the help wasn't removed so clean
this up too.

Fixes: 89d4f98ae9 ("ARM: remove zte zx platform")
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20210821094528.294579-1-pbrobinson@gmail.com
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

drivers/reset/Kconfig

@@ -214,7 +214,6 @@ config RESET_SIMPLE
 	   - Realtek SoCs
 	   - RCC reset controller in STM32 MCUs
 	   - Allwinner SoCs
-	   - ZTE's zx2967 family
 	   - SiFive FU740 SoCs
 
 config RESET_SOCFPGA