ASoC: mdm9615: Fix spare register variable initialization.
ASoC: mdm9615: Fix spare register variable initialization.

Initialize spare register variable. This causes Mic path
not to work if activated after voice call or combination of
Rx and TX path.

Change-Id: Ie431e2df4a8000489cc9763785c2182a608fcd3b
Signed-off-by: Venkat Sudhir <55021e95d7e58d9df5ac3197638bc9ff4916841b@codeaurora.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas