arm/imxrt: Resolve missing prototype

This resolves a missing prototype by making a file used in the arm/imx
BSP family shared so that it can be used by the arm/imxrt BSP family to
provide the missing prototypes.

bsps/arm/imxrt/start/bspstart.c

@@ -27,6 +27,7 @@
 
 #include <rtems/sysinit.h>
 
+#include <arm/freescale/imx/imx_ccmvar.h>
 #include <bsp.h>
 #include <bsp/bootcard.h>
 #include <bsp/fdt.h>

spec/build/bsps/arm/imx/bspimx.yml

@@ -15,7 +15,7 @@ install:
   - bsps/arm/imx/include/bsp.h
 - destination: ${BSP_INCLUDEDIR}/arm/freescale/imx
   source:
-  - bsps/arm/imx/include/arm/freescale/imx/imx_ccmvar.h
+  - bsps/arm/include/arm/freescale/imx/imx_ccmvar.h
   - bsps/arm/imx/include/arm/freescale/imx/imx_ecspireg.h
   - bsps/arm/imx/include/arm/freescale/imx/imx_gpcreg.h
   - bsps/arm/imx/include/arm/freescale/imx/imx_i2creg.h

spec/build/bsps/arm/imxrt/obj.yml

@@ -15,6 +15,7 @@ install:
   - bsps/arm/imxrt/include/fsl_clock_config.h
 - destination: ${BSP_INCLUDEDIR}/arm/freescale/imx
   source:
+  - bsps/arm/include/arm/freescale/imx/imx_ccmvar.h
   - bsps/arm/include/arm/freescale/imx/imx_iomuxreg.h
   - bsps/arm/include/arm/freescale/imx/imx_iomuxvar.h
 - destination: ${BSP_INCLUDEDIR}/bsp