toolchain/toolchain-external-codescape-mti-mips: rewrap Config.in.help text

toolchain/toolchain-external-codescape-mti-mips: rewrap Config.in.help text

Fix the following check-package warnings:

toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in:14: help text: <tab><2 spaces><62 chars> (http://nightly.buildroot.org/#writing-rules-config-in)
toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in:15: help text: <tab><2 spaces><62 chars> (http://nightly.buildroot.org/#writing-rules-config-in)
toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in:16: help text: <tab><2 spaces><62 chars> (http://nightly.buildroot.org/#writing-rules-config-in)

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>