dsp: asm: Add check for num_channels before calling q6asm_map_channels

Channel_mapping array size varies for different commands.
Add check for num_channels before calling q6asm_map_channels.

Issue: SEC-1941
Bug: 129851238
Change-Id: Iccbcfe82f716fc0ffe0a26b1779dcaa1c3cb805b
Signed-off-by: Rohit kumar <rohitkr@codeaurora.org>
(adapted from commit 2a53f55b72ad2f46fefcd09513e5c26163aa94eb)
1 file changed