prima: fix clang warning non-literal-null-conversion

/home/adek/kernel/msm8953/drivers/staging/prima/CORE/MAC/src/pe/lim/limLogDump.c:308:72: warning:
      expression which evaluates to zero treated as a null pointer constant of type
      'void *' [-Wnon-literal-null-conversion]
  ...mesg = { (tANI_U16) SIR_LIM_BEACON_GEN_IND, (tANI_U16) 0, (tANI_U32) 0 };
                                                               ^~~~~~~~~~~~
1 warning generated.

Change-Id: I3ab4b7114aeab32593abea75b7b6fd819b3cac70
Signed-off-by: khusika <khusikadhamar@gmail.com>