[source] imx6: fix build error

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/6db7a013bd155c4c5e681464883eee60b20ea7fa

commit 6db7a013bd155c4c5e681464883eee60b20ea7fa
Author: Koen Vandeputte <koen.vandeputte at ncentric.com>
AuthorDate: Fri Jan 27 16:45:14 2017 +0100

    imx6: fix build error
    
    This symbol is required when symbol SOC_IMX6 is also specified
    
    Signed-off-by: Koen Vandeputte <koen.vandeputte at ncentric.com>
---
 target/linux/generic/config-4.4 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/linux/generic/config-4.4 b/target/linux/generic/config-4.4
index cce7f27..ebc54bc 100644
--- a/target/linux/generic/config-4.4
+++ b/target/linux/generic/config-4.4
@@ -2791,6 +2791,7 @@ CONFIG_NLS_DEFAULT="iso8859-1"
 # CONFIG_NTP_PPS is not set
 # CONFIG_NVM is not set
 # CONFIG_NVMEM is not set
+# CONFIG_NVMEM_IMX_OCOTP is not set
 # CONFIG_NVRAM is not set
 # CONFIG_NV_TCO is not set
 # CONFIG_NXP_STB220 is not set