Add a new pwm app (rgb led) using the new API.
Following the recent pwm RFC, all existing APIs will
be deprecated. Two new APIs will be added. The changes
for the new APIs and the required driver function have
been posted.
To demonstrate the usage of the new PWM APIs, this app
to drive a rgb led is added. It will use the new API
pwm_pin_set_usec().
This app will be located in a new sub directory.
Jira: ZEP-745 ZEP-1029
Origin: Original
Change-Id: If8e5d8ab22dcf8b7cf3665e38949715c61ca9c03
Signed-off-by: Baohong Liu <baohong.liu@intel.com>
9824608935