net: ethernet: renesas: drop SoC names in Kconfig

Mentioning SoCs in Kconfig descriptions tends to get stale (e.g. RAVB is
missing RZV2M) or imprecise (e.g. SH_ETH is not available on all
R8A779x). Drop them instead of providing vague information. Improve the
file description a tad while here.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20231022205316.3209-3-wsa+renesas@sang-engineering.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/renesas/Kconfig

 # SPDX-License-Identifier: GPL-2.0
 #
-# Renesas device configuration
+# Renesas network device configuration
 #
 
 config NET_VENDOR_RENESAS
@@ -25,9 +25,6 @@ config SH_ETH
 	select PHYLIB
 	help
 	  Renesas SuperH Ethernet device driver.
-	  This driver supporting CPUs are:
-		- SH7619, SH7710, SH7712, SH7724, SH7734, SH7763, SH7757,
-		  R8A7740, R8A774x, R8A777x and R8A779x.
 
 config RAVB
 	tristate "Renesas Ethernet AVB support"
@@ -39,8 +36,6 @@ config RAVB
 	select PHYLIB
 	help
 	  Renesas Ethernet AVB device driver.
-	  This driver supports the following SoCs:
-		- R8A779x.
 
 config RENESAS_ETHER_SWITCH
 	tristate "Renesas Ethernet Switch support"
@@ -51,7 +46,5 @@ config RENESAS_ETHER_SWITCH
 	select PHYLINK
 	help
 	  Renesas Ethernet Switch device driver.
-	  This driver supports the following SoCs:
-		- R8A779Fx.
 
 endif # NET_VENDOR_RENESAS