raspberrypi: Fix build for raspberrypi3 #53

Job	Run time
define-matrix	2s
timestamp	9s
scarthgap-repo-init (raspberrypi3-mesa, 2_50, scarthgap)	45s
scarthgap-repo-init (wandboard-mesa, 2_50, scarthgap)	46s
scarthgap-repo-init (raspberrypi5, 2_50, scarthgap)	45s
build (raspberrypi5, 2_50, scarthgap)	41m 16s
build (wandboard-mesa, 2_50, scarthgap)	44m 38s
buildhistory-collect-srcrevs (raspberrypi5, 2_50, scarthgap)	1m 18s
buildhistory-collect-srcrevs (wandboard-mesa, 2_50, scarthgap)	1m 26s
build (raspberrypi3-mesa, 2_50, scarthgap)	1h 1m 40s
buildhistory-collect-srcrevs (raspberrypi3-mesa, 2_50, scarthgap)	1m 18s
test (wandboard-mesa, 2_50, scarthgap)	27m 25s
test (raspberrypi5, 2_50, scarthgap)	17m 29s
test (raspberrypi3-mesa, 2_50, scarthgap)	23m 38s
	3h 42m 35s

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