Merge branch 'ndk/atm/init_qrl_idx' into next (PR #3324)

Add one line (in clubb_intr.F90) that initializes array qrl_idx on the first step.

call pbuf_set_field(pbuf2d, qrl_idx, 0.0_r8)

Fixes #3142
Fixes #3061

[BFB]

components/cam/src/physics/cam/clubb_intr.F90

@@ -938,6 +938,7 @@ subroutine clubb_ini_cam(pbuf2d, dp1_in)
        call pbuf_set_field(pbuf2d, kvh_idx,     0.0_r8)
        call pbuf_set_field(pbuf2d, fice_idx,    0.0_r8)
        call pbuf_set_field(pbuf2d, radf_idx,    0.0_r8)
+       call pbuf_set_field(pbuf2d, qrl_idx,     0.0_r8)
 
        call pbuf_set_field(pbuf2d, vmag_gust_idx,    1.0_r8)