gpio/starfive: add gpio driver and support gpio reset

Add gpio driver and gpio reset function in Starfive
JH7110 SOC platform.

Signed-off-by: minda.chen <minda.chen@starfivetech.com>
Reviewed-by: Anup Patel <anup@brainfault.org>

platform/generic/configs/defconfig

@@ -6,6 +6,7 @@ CONFIG_PLATFORM_SIFIVE_FU740=y
 CONFIG_PLATFORM_STARFIVE_JH7110=y
 CONFIG_FDT_GPIO=y
 CONFIG_FDT_GPIO_SIFIVE=y
+CONFIG_FDT_GPIO_STARFIVE=y
 CONFIG_FDT_I2C=y
 CONFIG_FDT_I2C_SIFIVE=y
 CONFIG_FDT_IPI=y