copy compiler warning fixes
copy compiler warning fixes

generic version got fixed, but not the arm version. fixes:
vp8/encoder/arm/mcomp_arm.c: In function 'vp8_full_search_sadx3':
vp8/encoder/arm/mcomp_arm.c:1208: warning: pointer targets in passing
argument 5 of 'fn_ptr->sdx3f' differ in signedness
vp8/encoder/arm/mcomp_arm.c:1208: note: expected 'unsigned int *' but
argument is of type 'int *'

and another unsigned change to keep the files similar

Change-Id: I1b6255dc3a03b90394a791ee0d15d8167d9454db

webmproject/libvpx,GrokImageCompression/aom,webmproject/libvpx,kim42083/webm.libvpx,felipebetancur/libvpx,iniwf/webm.libvpx,n4t/libvpx,ShiftMediaProject/libvpx,liqianggao/libvpx,running770/libvpx,felipebetancur/libvpx,matanbs/webm.libvpx,Laknot/libvpx,shacklettbp/aom,jdm/libvpx,matanbs/webm.libvpx,rikaunite/gst-opera_libvpx,charup/https---github.com-webmproject-libvpx-,ShiftMediaProject/libvpx,Acidburn0zzz/webm.libvpx,liqianggao/libvpx,ittiamvpx/libvpx,stewnorriss/libvpx,shareefalis/libvpx,Maria1099/webm.libvpx,mbebenita/aom,turbulenz/libvpx,ittiamvpx/libvpx,Suvarna1488/webm.libvpx,shacklettbp/aom,altogother/webm.libvpx,abwiz0086/webm.libvpx,hsueceumd/test_hui,WebRTC-Labs/libvpx,turbulenz/libvpx,zofuthan/libvpx,kleopatra999/webm.libvpx,Laknot/libvpx,kim42083/webm.libvpx,altogother/webm.libvpx,reimaginemedia/webm.libvpx,sanyaade-teachings/libvpx,genesi/libvpx0,mwgoldsmith/libvpx,Maria1099/webm.libvpx,Acidburn0zzz/webm.libvpx,gshORTON/webm.libvpx,mbebenita/aom,turbulenz/libvpx,vasilvv/esvp8,awatry/libvpx.opencl,zofuthan/libvpx,Distrotech/libvpx,Topopiccione/libvpx,Maria1099/webm.libvpx,jacklicn/webm.libvpx,shyamalschandra/libvpx,thdav/aom,mwgoldsmith/vpx,cinema6/libvpx,shyamalschandra/libvpx,luctrudeau/aom,hsueceumd/test_hui,mbebenita/aom,Laknot/libvpx,jacklicn/webm.libvpx,charup/https---github.com-webmproject-libvpx-,openpeer/libvpx_new,Topopiccione/libvpx,genesi/libvpx0,smarter/aom,matanbs/webm.libvpx,Maria1099/webm.libvpx,kalli123/webm.libvpx,kleopatra999/webm.libvpx,Suvarna1488/webm.libvpx,jmvalin/aom,mbebenita/aom,felipebetancur/libvpx,jacklicn/webm.libvpx,matanbs/webm.libvpx,GrokImageCompression/aom,lyx2014/libvpx_c,reimaginemedia/webm.libvpx,mbebenita/aom,gshORTON/webm.libvpx,mwgoldsmith/vpx,turbulenz/libvpx,shareefalis/libvpx,enmasse-entertainment/libvpx,kalli123/webm.libvpx,thdav/aom,iniwf/webm.libvpx,kleopatra999/webm.libvpx,Acidburn0zzz/webm.libvpx,altogother/webm.libvpx,Distrotech/libvpx,ittiamvpx/libvpx,cinema6/libvpx,charup/https---github.com-webmproject-libvpx-,jacklicn/webm.libvpx,awatry/libvpx.opencl,abwiz0086/webm.libvpx,shyamalschandra/libvpx,webmproject/libvpx,VTCSecureLLC/libvpx,VTCSecureLLC/libvpx,vasilvv/esvp8,turbulenz/libvpx,vasilvv/esvp8,ittiamvpx/libvpx,enmasse-entertainment/libvpx,reimaginemedia/webm.libvpx,jmvalin/aom,rikaunite/gst-opera_libvpx,ittiamvpx/libvpx,kalli123/webm.libvpx,lyx2014/libvpx_c,enmasse-entertainment/libvpx,ShiftMediaProject/libvpx,n4t/libvpx,WebRTC-Labs/libvpx,hsueceumd/test_hui,reimaginemedia/webm.libvpx,VTCSecureLLC/libvpx,openpeer/libvpx_new,stewnorriss/libvpx,gshORTON/webm.libvpx,ittiamvpx/libvpx-1,matanbs/webm.libvpx,mbebenita/aom,webmproject/libvpx,luctrudeau/aom,felipebetancur/libvpx,openpeer/libvpx_new,smarter/aom,mwgoldsmith/vpx,felipebetancur/libvpx,mwgoldsmith/libvpx,ittiamvpx/libvpx-1,hsueceumd/test_hui,smarter/aom,shacklettbp/aom,sanyaade-teachings/libvpx,iniwf/webm.libvpx,genesi/libvpx0,zofuthan/libvpx,charup/https---github.com-webmproject-libvpx-,openpeer/libvpx_new,running770/libvpx,jdm/libvpx,kim42083/webm.libvpx,gshORTON/webm.libvpx,Laknot/libvpx,Maria1099/webm.libvpx,luctrudeau/aom,gshORTON/webm.libvpx,GrokImageCompression/aom,goodleixiao/vpx,pcwalton/libvpx,mwgoldsmith/vpx,shacklettbp/aom,thdav/aom,luctrudeau/aom,Acidburn0zzz/webm.libvpx,Topopiccione/libvpx,vasilvv/esvp8,genesi/libvpx0,cinema6/libvpx,mbebenita/aom,shyamalschandra/libvpx,liqianggao/libvpx,thdav/aom,jmvalin/aom,VTCSecureLLC/libvpx,matanbs/vp982,goodleixiao/vpx,matanbs/vp982,matanbs/webm.libvpx,liqianggao/libvpx,abwiz0086/webm.libvpx,Laknot/libvpx,altogother/webm.libvpx,rikaunite/gst-opera_libvpx,awatry/libvpx.opencl,iniwf/webm.libvpx,mwgoldsmith/libvpx,kalli123/webm.libvpx,charup/https---github.com-webmproject-libvpx-,kalli123/webm.libvpx,stewnorriss/libvpx,zofuthan/libvpx,turbulenz/libvpx,turbulenz/libvpx,enmasse-entertainment/libvpx,cinema6/libvpx,iniwf/webm.libvpx,enmasse-entertainment/libvpx,Suvarna1488/webm.libvpx,luctrudeau/aom,lyx2014/libvpx_c,liqianggao/libvpx,rikaunite/gst-opera_libvpx,altogother/webm.libvpx,lyx2014/libvpx_c,thdav/aom,ittiamvpx/libvpx-1,turbulenz/libvpx,running770/libvpx,pcwalton/libvpx,liqianggao/libvpx,jdm/libvpx,gshORTON/webm.libvpx,altogother/webm.libvpx,charup/https---github.com-webmproject-libvpx-,shacklettbp/aom,pcwalton/libvpx,VTCSecureLLC/libvpx,matanbs/vp982,kalli123/webm.libvpx,ittiamvpx/libvpx-1,smarter/aom,ittiamvpx/libvpx-1,shareefalis/libvpx,kleopatra999/webm.libvpx,jdm/libvpx,pcwalton/libvpx,iniwf/webm.libvpx,vasilvv/esvp8,smarter/aom,ittiamvpx/libvpx-1,mwgoldsmith/libvpx,webmproject/libvpx,Suvarna1488/webm.libvpx,jdm/libvpx,cinema6/libvpx,abwiz0086/webm.libvpx,WebRTC-Labs/libvpx,abwiz0086/webm.libvpx,kim42083/webm.libvpx,webmproject/libvpx,goodleixiao/vpx,sanyaade-teachings/libvpx,WebRTC-Labs/libvpx,smarter/aom,shareefalis/libvpx,abwiz0086/webm.libvpx,matanbs/vp982,mwgoldsmith/libvpx,Maria1099/webm.libvpx,GrokImageCompression/aom,vasilvv/esvp8,kim42083/webm.libvpx,reimaginemedia/webm.libvpx,n4t/libvpx,n4t/libvpx,VTCSecureLLC/libvpx,p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