Bluetooth: CAP: Fix log warning for meta pointer #150155

Job	Run time
twister-build-prep / prep_pr	3m 11s
twister-build-prep / prep_push	0s
twister-build (1)	31m 48s
twister-build (2)	31m 18s
twister-build (3)	31m 38s
twister-build (4)	40m 19s
twister-build (5)	23m 10s
twister-build (6)	29m 9s
twister-build (7)	29m 46s
Publish Unit Tests Results	10s
Check Twister Status / all jobs passed	1s
	3h 40m 30s

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