Led: Configs: Rainier: Update led names to reflect pca955x

Originally, all the leds were driven by "leds-gpio" driver.
However, community wanted the leds off PCA955x to be driven by
leds-pca955x driver. As part of that, all the leds that are
driven by pca955x leds driver would have the name prefix pca955x.
So, if the name of the led before was "dimmX", now, it would be
"pca955x:dimmX". phosphor-ledcontroller hosts these as
/xyz/openbmc_project/led/physical/pca955x_dimmX as opposed to
/xyz/openbmc_project/led/physical/dimmX.

Excluded for bmc-ingrahamX and cffpsX (Power supplies) as they
are directly off BMC and aren't on pca955x devices.

Signed-off-by: Lakshminarayana R. Kammath <lkammath@in.ibm.com>
Change-Id: Id2866ed8dce0b9d45bb8353e308cdcddbbac65c1
3 files changed