generic: add missing CONFIG_LEDS_ST1202 symbol

ST1202 controller was added recently, but it was not disabled in the
generic config, so lets avoid individual target configs disabling it
and just disable it in generic config.

Link: https://github.com/openwrt/openwrt/pull/17746
Signed-off-by: Robert Marko <[email protected]>

target/linux/generic/config-6.6

@@ -3082,6 +3082,7 @@ CONFIG_LEDS_CLASS_MULTICOLOR=y
 # CONFIG_LEDS_PWM_MULTICOLOR is not set
 # CONFIG_LEDS_REGULATOR is not set
 # CONFIG_LEDS_SPI_BYTE is not set
+# CONFIG_LEDS_ST1202 is not set
 # CONFIG_LEDS_SYSCON is not set
 # CONFIG_LEDS_TCA6507 is not set
 # CONFIG_LEDS_TI_LMU_COMMON is not set