arm64: dts: qcom: msm8916: Add mba memory reserve

The modem boot authenticator needs space to play in, this is supposed to
be relocatable and as such could later be replaced with a dynamically
allocated chunk of memory. But let's give it a reserve for now, as we
know that works.
Signed-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: NAndy Gross <andy.gross@linaro.org>

arch/arm64/boot/dts/qcom/msm8916.dtsi

@@ -86,6 +86,11 @@
 			reg = <0x0 0x89300000 0x0 0x600000>;
 			no-map;
 		};
+
+		mba_mem: mba@8ea00000 {
+			no-map;
+			reg = <0 0x8ea00000 0 0x100000>;
+		};
 	};
 
 	cpus {