board: gateworks: venice: use common GSC driver

Use the common GSC driver.

This allows us to do some additional cleanup:
 - rename gsc{.c,.h} to eeprom{.c.h} for clarity
 - collapse eeprom_get_dev
 - remove unnecessary header files and alphabatize includes

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
diff --git a/arch/arm/mach-imx/imx8m/Kconfig b/arch/arm/mach-imx/imx8m/Kconfig
index 55db250..1abf526 100644
--- a/arch/arm/mach-imx/imx8m/Kconfig
+++ b/arch/arm/mach-imx/imx8m/Kconfig
@@ -97,6 +97,8 @@
 	select IMX8MM
 	select SUPPORT_SPL
 	select IMX8M_LPDDR4
+	select GATEWORKS_SC
+	select MISC
 
 config TARGET_KONTRON_MX8MM
 	bool "Kontron Electronics N80xx"
@@ -143,6 +145,8 @@
 	select IMX8MN
 	select SUPPORT_SPL
 	select IMX8M_LPDDR4
+	select GATEWORKS_SC
+	select MISC
 
 config TARGET_IMX8MP_EVK
 	bool "imx8mp LPDDR4 EVK board"