Philippe 15/02/2021: budgets: correct electricity budgets

(cherry picked from commit efa327ed951e640c43d1827e6a8e2c76d4de9071)

src/MNH/modd_budget.f90

@@ -47,6 +47,7 @@
 !  P. Wautelet 30/06/2020: add NNETURSV, NNEADVSV and NNECONSV variables
 !  P. Wautelet 01/02/2021: add missing source: VISC
 !  P. Wautelet 03/02/2021: budgets: add new source if LIMA splitting: CORR2
+!  P. Wautelet 15/02/2021: budgets: correct electricity budgets
 !-------------------------------------------------------------------------------
 !
 !*       0.   DECLARATIONS
@@ -670,6 +671,14 @@ INTEGER, SAVE :: NGMLTQG
 INTEGER, SAVE :: NSEDIQG
 INTEGER, SAVE :: NNEUTQG
 !
+! Allowed processes for the budget of electric charge carried by negative ions
+INTEGER, SAVE :: NDEPSNI
+INTEGER, SAVE :: NDEPGNI
+INTEGER, SAVE :: NREVANI
+INTEGER, SAVE :: NCDEPINI
+INTEGER, SAVE :: NNEUTNI
+#endif
+!
 ! must add processes for electric charge carried by hail
 !
 !