Lowering OMV2 sensor clock to work with the higher sensor PLL.
#define OMV_XCLK_SOURCE (OMV_XCLK_TIM)
// Sensor external clock timer frequency.
-#define OMV_XCLK_FREQUENCY (8000000)
+#define OMV_XCLK_FREQUENCY (5000000)
// Have built-in RGB->LAB table.
#define OMV_HAVE_LAB_TABLE
