MIPS: Cavium: Add struct clocksource * argument to octeon_cvmcount_read()

This patch modifies parameter of octeon_cvmcount_read() from 'void' to
'struct clocksource *cs', which fixes compile warning for incompatible
parameter type.
Signed-off-by: Coly Li <coly.li@suse.de>
Cc: David Daney <ddaney@caviumnetworks.com>
Cc: Ingo Molnar <mingo@elte.hu>
Reviewed-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/cavium-octeon/csrc-octeon.c

@@ -38,7 +38,7 @@ void octeon_init_cvmcount(void)
 	local_irq_restore(flags);
 }
 
-static cycle_t octeon_cvmcount_read(void)
+static cycle_t octeon_cvmcount_read(struct clocksource *cs)
 {
 	return read_c0_cvmcount();
 }