sh: kfr2r09: document the PLL/FLL <-> RF relationship.

Early clock initialization sets up PLL/FLL values for optimal RF
behaviour. As this relationship is presently undocumented, we document
this in the script so the rationale is apparent.
Signed-off-by: NKuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

arch/sh/include/mach-kfr2r09/mach/partner-jet-setup.txt

@@ -27,6 +27,8 @@ ED 0xff800020, 0xa5a50001
 ED 0xfec10000, 0x0000001b
 
 LIST "setup clocks"
+LIST "The PLL and FLL values are updated here for the optimal"
+LIST "RF frequency and improved reception sensitivity."
 ED 0xa4150004, 0x00000050
 ED 0xa4150000, 0x91053508
 WAIT 1