test/py: test_efi_fit: Update #size-cells to 1

test_efi_fit tests fail on RISC-V currently. This is due to the
RISC-V arch_fixup_fdt() checks the #size-cells of the root node
in order to correctly fix up the reserved memory node.

Per the DT binding, the /reserved-memory node requires both
<#address-cells> and <#size-cells> and they should use the same
values as the root node. For the root node, it's not very useful
if <#size-cells> is zero.

Update #size-cells to 1 so tests can pass.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
diff --git a/test/py/tests/test_efi_fit.py b/test/py/tests/test_efi_fit.py
index beaf4a3..06fb151 100644
--- a/test/py/tests/test_efi_fit.py
+++ b/test/py/tests/test_efi_fit.py
@@ -106,14 +106,14 @@
 
 / {
     #address-cells = <1>;
-    #size-cells = <0>;
+    #size-cells = <1>;
 
     model = "%(sys-arch)s %(fdt_type)s EFI FIT Boot Test";
     compatible = "%(sys-arch)s";
 
     reset@0 {
         compatible = "%(sys-arch)s,reset";
-        reg = <0>;
+        reg = <0 4>;
     };
 };
 '''