hw/virt/arm: double the amount of secure memory

Bug: 138254506
Change-Id: I770e4bb8c1819819d16c6d15153a2299f0b8a85e
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index f69e7eb..474a880 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -146,7 +146,7 @@
     [VIRT_MMIO] =               { 0x0a000000, 0x00000200 },
     /* ...repeating for a total of NUM_VIRTIO_TRANSPORTS, each of that size */
     [VIRT_PLATFORM_BUS] =       { 0x0c000000, 0x02000000 },
-    [VIRT_SECURE_MEM] =         { 0x0e000000, 0x01000000 },
+    [VIRT_SECURE_MEM] =         { 0x0e000000, 0x02000000 },
     [VIRT_PCIE_MMIO] =          { 0x10000000, 0x2eff0000 },
     [VIRT_PCIE_PIO] =           { 0x3eff0000, 0x00010000 },
     [VIRT_PCIE_ECAM] =          { 0x3f000000, 0x01000000 },