The crash built-in mach "-m|-c" options display machine stats on ppc64le

Issue

• The crash built-in mach "-m|-c" options display machine stats on ppc64le.

-m  Display the physical memory map (x86, x86_64 and ia64 only).

crash> mach -m
PPC64: '-m' option is not supported
       MACHINE TYPE: ppc64le
        MEMORY SIZE: 8 GB
               CPUS: 8
    PROCESSOR SPEED: 3300 Mhz
                 HZ: 100
                MMU: HASH
          PAGE SIZE: 65536
KERNEL VIRTUAL BASE: c000000000000000
KERNEL VMALLOC BASE: c008000000000000
  KERNEL STACK SIZE: 16384
HARD IRQ STACK SIZE: 16384
    HARD IRQ STACKS:
              CPU 0: c0000001fffe0000
              CPU 1: c0000001fffd8000
              CPU 2: c0000001fffd0000
              CPU 3: c0000001fffc8000
              CPU 4: c0000001fffc0000
              CPU 5: c0000001fffb8000
              CPU 6: c0000001fffb0000
              CPU 7: c0000001fffa8000
SOFT IRQ STACK SIZE: 16384
    SOFT IRQ STACKS:
              CPU 0: c0000001fffe4000
              CPU 1: c0000001fffdc000
              CPU 2: c0000001fffd4000
              CPU 3: c0000001fffcc000
              CPU 4: c0000001fffc4000
              CPU 5: c0000001fffbc000
              CPU 6: c0000001fffb4000
              CPU 7: c0000001fffac000

-c  Display each cpu's cpuinfo structure (x86, x86_64 and ia64 only).
    Display each cpu's x8664_pda structure (x86_64 only),

crash> mach -c
PPC64: '-c' option is not supported
       MACHINE TYPE: ppc64le
        MEMORY SIZE: 8 GB
               CPUS: 8
    PROCESSOR SPEED: 3300 Mhz
                 HZ: 100
                MMU: HASH
          PAGE SIZE: 65536
KERNEL VIRTUAL BASE: c000000000000000
KERNEL VMALLOC BASE: c008000000000000
  KERNEL STACK SIZE: 16384
HARD IRQ STACK SIZE: 16384
    HARD IRQ STACKS:
              CPU 0: c0000001fffe0000
              CPU 1: c0000001fffd8000
              CPU 2: c0000001fffd0000
              CPU 3: c0000001fffc8000
              CPU 4: c0000001fffc0000
              CPU 5: c0000001fffb8000
              CPU 6: c0000001fffb0000
              CPU 7: c0000001fffa8000
SOFT IRQ STACK SIZE: 16384
    SOFT IRQ STACKS:
              CPU 0: c0000001fffe4000
              CPU 1: c0000001fffdc000
              CPU 2: c0000001fffd4000
              CPU 3: c0000001fffcc000
              CPU 4: c0000001fffc4000
              CPU 5: c0000001fffbc000
              CPU 6: c0000001fffb4000
              CPU 7: c0000001fffac000