staging: most: i2c: Fix a little doc-rot

staging: most: i2c: Fix a little doc-rot

Fixes the following W=1 kernel build warning(s):

 drivers/staging/most/i2c/i2c.c:66: warning: Function parameter or member 'most_iface' not described in 'configure_channel'
 drivers/staging/most/i2c/i2c.c:66: warning: Function parameter or member 'ch_idx' not described in 'configure_channel'
 drivers/staging/most/i2c/i2c.c:66: warning: Excess function parameter 'iface' description in 'configure_channel'
 drivers/staging/most/i2c/i2c.c:66: warning: Excess function parameter 'channel' description in 'configure_channel'
 drivers/staging/most/i2c/i2c.c:121: warning: Function parameter or member 'most_iface' not described in 'enqueue'
 drivers/staging/most/i2c/i2c.c:121: warning: Function parameter or member 'ch_idx' not described in 'enqueue'
 drivers/staging/most/i2c/i2c.c:121: warning: Excess function parameter 'iface' description in 'enqueue'
 drivers/staging/most/i2c/i2c.c:121: warning: Excess function parameter 'channel' description in 'enqueue'
 drivers/staging/most/i2c/i2c.c:166: warning: Function parameter or member 'most_iface' not described in 'poison_channel'
 drivers/staging/most/i2c/i2c.c:166: warning: Function parameter or member 'ch_idx' not described in 'poison_channel'
 drivers/staging/most/i2c/i2c.c:166: warning: Excess function parameter 'iface' description in 'poison_channel'
 drivers/staging/most/i2c/i2c.c:166: warning: Excess function parameter 'channel_id' description in 'poison_channel'

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Cc: linux-staging@lists.linux.dev
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210414181129.1628598-34-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>