kernel: can: Add missing regmap dependency for kernel 4.4

Fixes build failure for kmod-can-c-can-platform which depends on
kmod-regmap for kernel 4.1 and 4.4.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

package/kernel/linux/modules/can.mk

@@ -241,7 +241,7 @@ $(eval $(call KernelPackage,can-c-can))
 define KernelPackage/can-c-can-platform
   TITLE:=Platform Bus based BOSCH C_CAN/D_CAN driver
   KCONFIG:=CONFIG_CAN_C_CAN_PLATFORM
-  DEPENDS:=kmod-can-c-can +LINUX_4_1:kmod-regmap
+  DEPENDS:=kmod-can-c-can +!LINUX_3_18:kmod-regmap
   FILES:=$(LINUX_DIR)/drivers/net/can/c_can/c_can_platform.ko
   AUTOLOAD:=$(call AutoProbe,c_can_platform)
   $(call AddDepends/can)