fbdev: sh_mobile_meram: Assign meram to the SH7372_A4LC power domain

Register the MERAM device as a part of the A4LC power domain for
power management.
Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp>

arch/arm/mach-shmobile/board-mackerel.c

@@ -1583,6 +1583,7 @@ static void __init mackerel_init(void)
 
 	sh7372_add_device_to_domain(&sh7372_a4lc, &lcdc_device);
 	sh7372_add_device_to_domain(&sh7372_a4lc, &hdmi_lcdc_device);
+	sh7372_add_device_to_domain(&sh7372_a4lc, &meram_device);
 	sh7372_add_device_to_domain(&sh7372_a4mp, &fsi_device);
 
 	hdmi_init_pm_clock();