Fix a typo in CMake option disabling AMReX incflo solvers (BLAST-WarpX#5405)

Author: WeiqunZhang

cmake/dependencies/AMReX.cmake

@@ -93,7 +93,7 @@ macro(find_amrex)
         set(AMReX_PROBINIT OFF CACHE INTERNAL "")
         set(AMReX_TINY_PROFILE ON CACHE BOOL "")
         set(AMReX_LINEAR_SOLVERS_EM ON CACHE INTERNAL "")
-        set(AMReX_LINEAR_SOLVER_INCFLO OFF CACHE INTERNAL "")
+        set(AMReX_LINEAR_SOLVERS_INCFLO OFF CACHE INTERNAL "")
 
         if(WarpX_ASCENT OR WarpX_SENSEI)
             set(AMReX_GPU_RDC ON CACHE BOOL "")