kernel: add missing symbol

Signed-off-by: Tim Harvey <[email protected]>

target/linux/generic/config-4.14

@@ -3581,6 +3581,7 @@ CONFIG_PWRSEQ_EMMC=y
 CONFIG_PWRSEQ_SIMPLE=y
 # CONFIG_QCA7000 is not set
 # CONFIG_QCA7000_SPI is not set
+# CONFIG_QCA7000_UART is not set
 # CONFIG_QCOM_EMAC is not set
 # CONFIG_QCOM_FALKOR_ERRATUM_1003 is not set
 # CONFIG_QCOM_FALKOR_ERRATUM_1009 is not set