SnapdragonCamera: Fix FC when tap flash button continously

When user tap flash button continously, camera session occur
error, and throw IllegalStateException. Because session has
been closed, further changes are illegal. Solution, use
try/catch to capture the IllegalStateException.

Change-Id: Ib2349673e1ab34b9a897e3e7c96cfa6c7744b80c
CRs-Fixed: 1084774
1 file changed