radio: iris: Add synchronize mechanism to handle multiple command requests
radio: iris: Add synchronize mechanism to handle multiple command requests

Used mutex to synchronize the command requests.

Change-Id: Ie58b996bbc76b36095020556a2046b7aa5c351fa
CRs-Fixed: 448591
Signed-off-by: Venkateshwarlu Domakonda <eb2f3e814ecfadde45c9a97bb2b5540532a0e52a@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