image: Add boot_get_fpga() to load fpga with bootm

Add function boot_get_fpga() which find and load bitstream to
programmable logic if fpga entry is present.
Function is supported on Xilinx devices for full and partial bitstreams
in BIN and BIT format.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Remove additional blankline in image.h
diff --git a/common/image-fit.c b/common/image-fit.c
index 8a0ca2a..9873957 100644
--- a/common/image-fit.c
+++ b/common/image-fit.c
@@ -422,7 +422,8 @@
 	}
 
 	if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) ||
-	    (type == IH_TYPE_FIRMWARE) || (type == IH_TYPE_RAMDISK)) {
+	    (type == IH_TYPE_FIRMWARE) || (type == IH_TYPE_RAMDISK) ||
+	    (type == IH_TYPE_FPGA)) {
 		ret = fit_image_get_load(fit, image_noffset, &load);
 		printf("%s  Load Address: ", p);
 		if (ret)
@@ -1571,6 +1572,8 @@
 		return FIT_SETUP_PROP;
 	case IH_TYPE_LOADABLE:
 		return FIT_LOADABLE_PROP;
+	case IH_TYPE_FPGA:
+		return FIT_FPGA_PROP;
 	}
 
 	return "unknown";
@@ -1685,7 +1688,7 @@
 			fit_image_check_type(fit, noffset,
 					     IH_TYPE_KERNEL_NOLOAD));
 
-	os_ok = image_type == IH_TYPE_FLATDT ||
+	os_ok = image_type == IH_TYPE_FLATDT || IH_TYPE_FPGA ||
 		fit_image_check_os(fit, noffset, IH_OS_LINUX) ||
 		fit_image_check_os(fit, noffset, IH_OS_OPENRTOS);