msm: mpq8092: Fix compilation errors for 8092 build

Include clk_provider.h header file in board-8092.c
inorder to use CLK_DUMMY marco. This fixes the compliation
errors in 8092 kernel build.

Change-Id: I6ab69ad1909f615100845a8406bc1a66fb025d2f
Signed-off-by: Srinivas Ramana <sramana@codeaurora.org>