perf/ibs: Fix comment

s/IBS Op Data 2/IBS Op Data 1/ for MSR 0xc0011035.

Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220509044914.1473-9-ravi.bangoria@amd.com