bloblist: Allow custom alignment for blobs

Some blobs need a larger alignment than the default. For example, ACPI
tables often start at a 4KB boundary. Add support for this.

Update the size of the test blob to allow these larger records.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/intel_common/intel_opregion.c b/arch/x86/cpu/intel_common/intel_opregion.c
index 4e6c64d..c95ae04 100644
--- a/arch/x86/cpu/intel_common/intel_opregion.c
+++ b/arch/x86/cpu/intel_common/intel_opregion.c
@@ -108,7 +108,7 @@
 		struct optionrom_vbt *ext_vbt;
 
 		ret = bloblist_ensure_size(BLOBLISTT_INTEL_VBT,
-					   vbt->hdr_vbt_size,
+					   vbt->hdr_vbt_size, 0,
 					   (void **)&ext_vbt);
 		if (ret) {
 			log_err("GMA: Unable to add Ext VBT to bloblist\n");