[MIPS] Fix some minor typoes in arch/mips/Kconfig.

	  to print messages very early in the bootup process.

	  This is useful for kernel debugging when your machine crashes very

	  early before the console code is initialized. For normal operation

	  it is not recommended because it looks on some machines ugly and

	  oesn't cooperate with an X server. You should normally N here,

	  early before the console code is initialized. For normal operation,

	  it is not recommended because it looks ugly on some machines and

	  doesn't cooperate with an X server. You should normally say N here,

	  unless you want to debug such a crash.

config SYS_HAS_EARLY_PRINTK