fix(zynqmp): resolve the misra 4.6 warnings

MISRA Violation: MISRA-C:2012 R.4.6
- Using basic numerical type int rather than a typedef
that includes size and signedness information.

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
Change-Id: I9fb686e7aa2b85af6dfcb7bb5f87eddf469fb85c
diff --git a/plat/xilinx/zynqmp/include/plat_private.h b/plat/xilinx/zynqmp/include/plat_private.h
index 288cc53..534777b 100644
--- a/plat/xilinx/zynqmp/include/plat_private.h
+++ b/plat/xilinx/zynqmp/include/plat_private.h
@@ -15,11 +15,11 @@
 
 void zynqmp_config_setup(void);
 
-unsigned int zynqmp_calc_core_pos(u_register_t mpidr);
+uint32_t zynqmp_calc_core_pos(u_register_t mpidr);
 
 /* ZynqMP specific functions */
-unsigned int zynqmp_get_uart_clk(void);
-unsigned int zynqmp_get_bootmode(void);
+uint32_t zynqmp_get_uart_clk(void);
+uint32_t zynqmp_get_bootmode(void);
 
 
 #if ZYNQMP_WDT_RESTART