regulator: max77650: Fix include files

This is a platform driver, no need to include linux/i2c.h.
Include linux/of.h for of_match_ptr.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/max77650-regulator.c

@@ -5,7 +5,7 @@
 //
 // Regulator driver for MAXIM 77650/77651 charger/power-supply.
 
-#include <linux/i2c.h>
+#include <linux/of.h>
 #include <linux/mfd/max77650.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>