ARM: rmobile: Enable clock framework on Salvator-X

Since there is now a clock driver for RCar Gen3, enable it on this board.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: NNobuhiro Iwamatsu <iwamatsu@nigauri.org>

configs/r8a7795_salvator-x_defconfig

@@ -15,6 +15,8 @@ CONFIG_CMD_DHCP=y
 CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
 CONFIG_CMD_FAT=y
+CONFIG_CLK=y
+CONFIG_CLK_RENESAS=y
 CONFIG_SH_SDHI=y
 CONFIG_DM_ETH=y
 CONFIG_RENESAS_RAVB=y

configs/r8a7796_salvator-x_defconfig

@@ -16,6 +16,8 @@ CONFIG_CMD_DHCP=y
 CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
 CONFIG_CMD_FAT=y
+CONFIG_CLK=y
+CONFIG_CLK_RENESAS=y
 CONFIG_SH_SDHI=y
 CONFIG_DM_ETH=y
 CONFIG_RENESAS_RAVB=y