[OpenMP] Fix force-usm test after llvm#157182 (llvm#159095)

The refactoring lead to an additional data transfer. This changes the
assumed transfers in the check-strings to work with that changed
behavior.

Author: jplehr

offload/test/offloading/force-usm.cpp

@@ -48,7 +48,7 @@ int main(void) {
 
 // clang-format off
 // NO-USM: omptarget device 0 info: Copying data from host to device, HstPtr={{.*}}, TgtPtr={{.*}}, Size=4
-// NO-USM-NEXT: omptarget device 0 info: Copying data from host to device, HstPtr={{.*}}, TgtPtr={{.*}}, Size=12
+// NO-USM: omptarget device 0 info: Copying data from host to device, HstPtr={{.*}}, TgtPtr={{.*}}, Size=12
 // NO-USM-NEXT: omptarget device 0 info: Copying data from host to device, HstPtr={{.*}}, TgtPtr={{.*}}, Size=4
 // NO-USM-NEXT: omptarget device 0 info: Copying data from host to device, HstPtr={{.*}}, TgtPtr={{.*}}, Size=8, Name=pGI
 // NO-USM-NEXT: omptarget device 0 info: Copying data from device to host, TgtPtr={{.*}}, HstPtr={{.*}}, Size=4