tty: fix typos in comments

Spelling mistakes (triple letters) in comments.
Detected with the help of Coccinelle.

Signed-off-by: Julia Lawall <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/tty/mips_ejtag_fdc.c

···
 
 	/* Construct a word from any data in buffer */
 	word = mips_ejtag_fdc_encode(bufs, &kgdbfdc_wbuflen, 1);
-	/* Relocate any remaining data to beginnning of buffer */
+	/* Relocate any remaining data to beginning of buffer */
 	kgdbfdc_wbuflen -= word.bytes;
 	for (i = 0; i < kgdbfdc_wbuflen; ++i)
 		kgdbfdc_wbuf[i] = kgdbfdc_wbuf[i + word.bytes];

drivers/tty/tty_io.c

···
 	 */
 	tty_ldisc_release(tty);
 
-	/* Wait for pending work before tty destruction commmences */
+	/* Wait for pending work before tty destruction commences */
 	tty_flush_works(tty);
 
 	tty_debug_hangup(tty, "freeing structure\n");