asoc: codecs: bolero: Add adc1 condition to tx hold callback

TX hold callback returns without making a callback
to external codec if the ADC with number one is called.
Add the condition for the missing ADC to make the callback
for ADC1.

Change-Id: Iec480b40cfbe199fbe06151abd99d9ad6aaf9c9d
Signed-off-by: Karthikeyan Mani <kmani@codeaurora.org>