imx6: enable the Freescale SNVS RTC driver in the kernel config instead of packaging it

Signed-off-by: Felix Fietkau <nbd@nbd.name>

package/kernel/linux/modules/other.mk

@@ -618,22 +618,6 @@ endef
 
 $(eval $(call KernelPackage,rtc-pt7c4338))
 
-define KernelPackage/rtc-snvs
-  SUBMENU:=$(OTHER_MENU)
-  TITLE:=Freescale SNVS RTC support
-  DEPENDS:=@TARGET_imx6 @RTC_SUPPORT
-  KCONFIG:=CONFIG_RTC_DRV_SNVS \
-	CONFIG_RTC_CLASS=y
-  FILES:=$(LINUX_DIR)/drivers/rtc/rtc-snvs.ko
-  AUTOLOAD:=$(call AutoLoad,50,rtc-snvs,1)
-endef
-
-define KernelPackage/rtc-snvs/description
- Kernel module for Freescale SNVS RTC on chip module
-endef
-
-$(eval $(call KernelPackage,rtc-snvs))
-
 define KernelPackage/rtc-rs5c372a
   SUBMENU:=$(OTHER_MENU)
   TITLE:=Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A

target/linux/imx6/config-4.4

@@ -123,7 +123,6 @@ CONFIG_DMADEVICES=y
 CONFIG_DMA_ENGINE=y
 CONFIG_DMA_OF=y
 CONFIG_DTC=y
-# CONFIG_DW_DMAC_PCI is not set
 CONFIG_EDAC_ATOMIC_SCRUB=y
 CONFIG_EDAC_SUPPORT=y
 # CONFIG_ENABLE_DEFAULT_TRACERS is not set
@@ -301,6 +300,7 @@ CONFIG_OLD_SIGACTION=y
 CONFIG_OLD_SIGSUSPEND3=y
 CONFIG_OUTER_CACHE=y
 CONFIG_OUTER_CACHE_SYNC=y
+CONFIG_PADATA=y
 CONFIG_PAGE_OFFSET=0x80000000
 CONFIG_PCI=y
 CONFIG_PCIEAER=y
@@ -353,6 +353,7 @@ CONFIG_RTC_DRV_DS1307=y
 CONFIG_RTC_DRV_DS1672=y
 # CONFIG_RTC_DRV_IMXDI is not set
 # CONFIG_RTC_DRV_MXC is not set
+CONFIG_RTC_DRV_SNVS=y
 CONFIG_RWSEM_SPIN_ON_OWNER=y
 CONFIG_RWSEM_XCHGADD_ALGORITHM=y
 CONFIG_SATA_AHCI_PLATFORM=y