Fix API >= 35 layout for rewarded examples #1820

Job	Run time
Build (kotlin/advanced/JetpackComposeDemo)	7s
Build (java/advanced/RewardedSSVExample)	7s
Build (kotlin/advanced/InlineAdaptiveBannerExample)	9s
Build (java/advanced/InlineAdaptiveBannerExample)	7s
Build (kotlin/advanced/APIDemo)	8s
Build (java/admob/AppOpenExample)	7s
Build (java/advanced/APIDemo)	7s
Build (kotlin/admob/AppOpenExample)	8s
Build (kotlin/admob/InterstitialExample)	9s
Build (java/admob/FullScreenNativeExample)	8s
Build (kotlin/admob/BannerExample)	9s
Build (java/admob/RewardedVideoExample)	4m 44s
Build (java/admanager/RewardedInterstitialExample)	5s
Build (kotlin/admanager/NativeAdsExample)	6s
Build (kotlin/admanager/BannerExample)	6s
Build (kotlin/admob/RewardedInterstitialExample)	6s
Build (java/admanager/AppOpenExample)	5s
Build (java/admob/InterstitialExample)	8s
Build (java/admanager/NativeAdsExample)	8s
Build (java/admob/NativeAdvancedExample)	5s
Build (java/admanager/BannerExample)	8s
Build (kotlin/admanager/AppOpenExample)	9s
Build (kotlin/admanager/InterstitialExample)	7s
Build (kotlin/admanager/RewardedVideoExample)	5m 11s
Build (java/admanager/RewardedVideoExample)	4m 8s
Build (kotlin/admanager/RewardedInterstitialExample)	5s
Build (java/admob/BannerExample)	7s
Build (java/admob/RewardedInterstitialExample)	9s
Build (kotlin/admob/RewardedVideoExample)	5m 16s
Build (java/admanager/InterstitialExample)	9s
Build (kotlin/admob/NativeAdvancedExample)	7s
	22m 35s

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