third-party: openlibm: add 'mips' in the patch file
third-party: openlibm: add 'mips' in the patch file

Fix the build error related to roundl() function by adding
mips to the list of architectures in patch file of openlibm.

Signed-off-by: Puranjay Mohan <e4d09ccd00b0539b39770dbb60a701a448d09e82@gmail.com>

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