hwclock: fix compiler warnings

hwclock: fix compiler warnings

hwclock.c: In function 'manipulate_epoch':
hwclock.c:1299:29: warning: unused parameter 'getepoch' [-Wunused-parameter]
hwclock.c:1299:50: warning: unused parameter 'setepoch' [-Wunused-parameter]
hwclock.c:1300:14: warning: unused parameter 'epoch_opt' [-Wunused-parameter]
hwclock.c:1300:36: warning: unused parameter 'testing' [-Wunused-parameter]
hwclock.c: In function 'usage':
hwclock.c:1373:1: warning: embedding a directive within macro arguments is not portable [enabled by default]
hwclock.c:1377:1: warning: embedding a directive within macro arguments is not portable [enabled by default]
hwclock.c:1383:1: warning: embedding a directive within macro arguments is not portable [enabled by default]
hwclock.c:1385:1: warning: embedding a directive within macro arguments is not portable [enabled by default]

cmos.c: In function 'outb':
cmos.c:84:15: warning: unused parameter 'a' [-Wunused-parameter]
cmos.c:84:22: warning: unused parameter 'b' [-Wunused-parameter]
cmos.c: In function 'inb':
cmos.c:88:13: warning: unused parameter 'c' [-Wunused-parameter]
cmos.c: In function 'atomic':
cmos.c:265:20: warning: unused parameter 'name' [-Wunused-parameter]
cmos.c: In function 'i386_iopl':
cmos.c:544:32: warning: unused parameter 'level' [-Wunused-parameter]
cmos.c: In function 'get_permissions_cmos':
cmos.c:565:8: warning: unused variable 'errsv' [-Wunused-variable]

Signed-off-by: Sami Kerola <kerolasa@iki.fi>