ASoC: update gfp/slab.h includes

Implicit slab.h inclusion via percpu.h is about to go away.  Make sure
gfp.h or slab.h is included as necessary.
Signed-off-by: NTejun Heo <tj@kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/soc/codecs/cq93vc.c

@@ -27,6 +27,7 @@
 #include <linux/pm.h>
 #include <linux/platform_device.h>
 #include <linux/device.h>
+#include <linux/slab.h>
 #include <linux/clk.h>
 #include <linux/mfd/davinci_voicecodec.h>
 

sound/soc/davinci/davinci-vcif.c

@@ -24,6 +24,7 @@
 #include <linux/module.h>
 #include <linux/device.h>
 #include <linux/delay.h>
+#include <linux/slab.h>
 #include <linux/io.h>
 #include <linux/mfd/davinci_voicecodec.h>