[ALSA] Add even more 'const' to everything related to TLV

Mark TLV data as 'const'
Signed-of-by: Philipp Matthias Hahn <pmhahn@pmhahn.de>

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c
index 7b173c4..c02012c 100644
--- a/sound/pci/emu10k1/emufx.c
+++ b/sound/pci/emu10k1/emufx.c
@@ -296,7 +296,7 @@
 };
 
 /* EMU10k1/EMU10k2 DSP control db gain */
-static DECLARE_TLV_DB_SCALE(snd_emu10k1_db_scale1, -4000, 40, 1);
+static const DECLARE_TLV_DB_SCALE(snd_emu10k1_db_scale1, -4000, 40, 1);
 
 static const u32 onoff_table[2] = {
 	0x00000000, 0x00000001
@@ -657,7 +657,7 @@
 
 #define MAX_TLV_SIZE	256
 
-static unsigned int *copy_tlv(unsigned int __user *_tlv)
+static unsigned int *copy_tlv(const unsigned int __user *_tlv)
 {
 	unsigned int data[2];
 	unsigned int *tlv;