dec_neon: use vld?_lane instead of vset?_lane
dec_neon: use vld?_lane instead of vset?_lane

results in fewer instructions, small speed improvement

Change-Id: I61ab48d09a5ce7c5158eac8244d28287457edc7a

yohunl/libwebp,comoyo/gonzo-libwebp,gshORTON/webm.libwebp,kalli123/webm.libwebp,kim42083/webm.libwebp,keane83/BLE_IM,comoyo/gonzo-libwebp,Suvarna1488/webm.libwebp,comoyo/gonzo-libwebp,matanbs/webm.libwebp,altogother/webm.libwebp,appunite/libwebp,kleopatra999/webm.libwebp,webmproject/libwebp,Aexyn/libwebp,matanbs/webm.libwebp,Suvarna1488/webm.libwebp,appunite/libwebp,ya7lelkom/libwebp,appunite/libwebp,altogother/webm.libwebp,ttyangf/libwebp,imazen/libwebp,appunite/libwebp,iniwf/webm.libwebp,yohunl/libwebp,kleopatra999/webm.libwebp,iniwf/webm.libwebp,ericmckean/webm.libwebp,yohunl/libwebp,kim42083/webm.libwebp,rxl194/libwebp,kalli123/webm.libwebp,zofuthan/libwebp,ya7lelkom/libwebp,ericmckean/webm.libwebp,Maria1099/webm.libwebp,webmproject/libwebp,PKRoma/libwebp,Aexyn/libwebp,jiehu5114/libwebp,Aexyn/libwebp,Acidburn0zzz/webm.libwebp,Acidburn0zzz/webm.libwebp,reimaginemedia/webm.libwebp,iniwf/webm.libwebp,imazen/libwebp,ttyangf/libwebp,gshORTON/webm.libwebp,yohunl/libwebp,kleopatra999/webm.libwebp,altogother/webm.libwebp,webmproject/libwebp,iniwf/webm.libwebp,matanbs/webm.libwebp,jacklicn/libwebp,Acidburn0zzz/webm.libwebp,redengineer/libwebp,ya7lelkom/libwebp,ttyangf/libwebp,jiehu5114/libwebp,zofuthan/libwebp,jacklicn/libwebp,imazen/libwebp,matanbs/webm.libwebp,kleopatra999/webm.libwebp,ericmckean/webm.libwebp,Acidburn0zzz/webm.libwebp,ericmckean/webm.libwebp,redengineer/libwebp,Aexyn/libwebp,appunite/libwebp,comoyo/gonzo-libwebp,matanbs/webm.libwebp,abwiz0086/webm.libwebp,zofuthan/libwebp,gshORTON/webm.libwebp,Maria1099/webm.libwebp,ericmckean/webm.libwebp,rxl194/libwebp,keane83/BLE_IM,PKRoma/libwebp,keane83/BLE_IM,ttyangf/libwebp,Maria1099/webm.libwebp,webmproject/libwebp,kim42083/webm.libwebp,reimaginemedia/webm.libwebp,PKRoma/libwebp,gshORTON/webm.libwebp,yohunl/libwebp,Maria1099/webm.libwebp,abwiz0086/webm.libwebp,rxl194/libwebp,gshORTON/webm.libwebp,Acidburn0zzz/webm.libwebp,kalli123/webm.libwebp,PKRoma/libwebp,jacklicn/libwebp,kleopatra999/webm.libwebp,jiehu5114/libwebp,PKRoma/libwebp,redengineer/libwebp,imazen/libwebp,rxl194/libwebp,reimaginemedia/webm.libwebp,Suvarna1488/webm.libwebp,abwiz0086/webm.libwebp,keane83/BLE_IM,reimaginemedia/webm.libwebp,PKRoma/libwebp,jacklicn/libwebp,Aexyn/libwebp,comoyo/gonzo-libwebp,abwiz0086/webm.libwebp,zofuthan/libwebp,comoyo/gonzo-libwebp,ya7lelkom/libwebp,redengineer/libwebp,jiehu5114/libwebp,jacklicn/libwebp,redengineer/libwebp,altogother/webm.libwebp,jiehu5114/libwebp,imazen/libwebp,kalli123/webm.libwebp,Suvarna1488/webm.libwebp,reimaginemedia/webm.libwebp,keane83/BLE_IM,Maria1099/webm.libwebp,kim42083/webm.libwebp,appunite/libwebp,ya7lelkom/libwebp,altogother/webm.libwebp,ttyangf/libwebp,webmproject/libwebp,zofuthan/libwebp,iniwf/webm.libwebp,comoyo/gonzo-libwebp,kim42083/webm.libwebp,Suvarna1488/webm.libwebp,rxl194/libwebp,abwiz0086/webm.libwebp,kalli123/webm.libwebp