zynqmp: pm: Reimplement pinctrl get/set config parameter EEMI API calls

Functions are reimplemented to issue system-level pinctrl EEMI calls
to the PMU-FW rather than using MMIO read/write. Macros and functions
that appear to be unused after the change is made are removed.

Signed-off-by: Mirela Simonovic <mirela.simonovic@aggios.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Change-Id: I51f2285a79f202cb2ca9f031044002e16dd1e92f
3 files changed