ALSA: emu10k1: Fix endianness annotations

The internal page tables are little endian, hence they should be
__le32 type.  This fixes the relevant sparse warning:
  sound/pci/emu10k1/emu10k1_main.c:2013:51: warning: incorrect type in assignment (different base types)
  sound/pci/emu10k1/emu10k1_main.c:2013:51:    expected unsigned int [usertype]
  sound/pci/emu10k1/emu10k1_main.c:2013:51:    got restricted __le32 [usertype]

No functional changes, just sparse warning fixes.

Link: https://lore.kernel.org/r/20200206163152.6073-3-tiwai@suse.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/emu10k1/emu10k1_main.c

@@ -1789,6 +1789,7 @@ int snd_emu10k1_create(struct snd_card *card,
 	int idx, err;
 	int is_audigy;
 	size_t page_table_size;
+	__le32 *pgtbl;
 	unsigned int silent_page;
 	const struct snd_emu_chip_details *c;
 	static const struct snd_device_ops ops = {
@@ -2009,8 +2010,9 @@ int snd_emu10k1_create(struct snd_card *card,
 	/* Clear silent pages and set up pointers */
 	memset(emu->silent_page.area, 0, emu->silent_page.bytes);
 	silent_page = emu->silent_page.addr << emu->address_mode;
+	pgtbl = (__le32 *)emu->ptb_pages.area;
 	for (idx = 0; idx < (emu->address_mode ? MAXPAGES1 : MAXPAGES0); idx++)
-		((u32 *)emu->ptb_pages.area)[idx] = cpu_to_le32(silent_page | idx);
+		pgtbl[idx] = cpu_to_le32(silent_page | idx);
 
 	/* set up voice indices */
 	for (idx = 0; idx < NUM_G; idx++) {