Inspection of real hardware has revealed one of the clock frequencies known
to be supported by PMAGB-B hardware is off by 3kHz.  Following is a fix.
Please apply.
Signed-off-by: NMaciej W. Rozycki <macro@linux-mips.org>
Acked-by: NJames Simmons <jsimmons@infradead.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>