Staging: wlags49_h2: Fix Sparse Warning for Static Declarations in hcf.c

This patch fixes following sparse warnings:
drivers/staging/wlags49_h2/hcf.c:253:26: warning: symbol 'cfg_drv_identity' was not declared. Should it be static?
drivers/staging/wlags49_h2/hcf.c:262:24: warning: symbol 'cfg_drv_sup_range' was not declared. Should it be static?
drivers/staging/wlags49_h2/hcf.c:274:31: warning: symbol 'cfg_drv_act_ranges_pri' was not declared. Should it be static?
drivers/staging/wlags49_h2/hcf.c:291:31: warning: symbol 'cfg_drv_act_ranges_sta' was not declared. Should it be static?
drivers/staging/wlags49_h2/hcf.c:336:31: warning: symbol 'cfg_drv_act_ranges_hsi' was not declared. Should it be static?
drivers/staging/wlags49_h2/hcf.c:373:24: warning: symbol 'cfg_drv_act_ranges_apf' was not declared. Should it be static?
drivers/staging/wlags49_h2/hcf.c:3103:1: warning: symbol 'calc_mic' was not declared. Should it be static?
drivers/staging/wlags49_h2/hcf.c:3419:1: warning: symbol 'check_mic' was not declared. Should it be static?

Signed-off-by: Monam Agarwal <monamagarwal123@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>