partitioning/intel: Allow creation of EFI partitions on MBR

* Essentially, EFI system partitions are just FAT32 formatted.
* We really haven't tried EFI booting on MBR (normal choice is GPT)
* I see no reason to *not* allow folks to create these.
* Align partition name to GPT's naming

Change-Id: I4cd52d542ea618f1ffe52927e15237fc10bb386c
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3224
Reviewed-by: Alex von Gluck IV <[email protected]>
Reviewed-by: Adrien Destugues <[email protected]>

src/add-ons/kernel/partitioning_systems/intel/PartitionMap.cpp

@@ -138,7 +138,7 @@ static const struct partition_type kPartitionTypes[] = {
     { 0xc7, "Syrinx", false }, 
     { 0xe4, "SpeedStor", false }, 
     { 0xee, "GPT", false }, 
-    { 0xef, "EFI", false }, 
+    { 0xef, "EFI system data", true },
     { 0xfb, "VMware VMFS", false },
     { 0xfc, "VMware VMKCORE", false },
     { 0xfd, "Linux raid auto", false },