feat(dt-bindings): new RCC DT bindings

RCC bindings alignment with MP13 RCC bindings:
- merge of 'st,clksrc' and 'st,pkcs' nodes into 'st,clksrc'
- no ordering requirements on 'st,clksrc' node
- use DIV() macro for 'st,clkdiv' node
- no ordering requirements on 'st,clkdiv' node
- new pll binding

Change-Id: Id3ca30608dde2091145123512c42c6958a378d91
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
1 file changed