[MINOR] Fix Typos

[zhengruifeng]

What changes were proposed in this pull request?

1,Rename matrix args in BreezeUtil to upper to match the doc
2,Fix several typos in ML and SQL

How was this patch tested?

manual tests

[SparkQA]

Test build #58488 has started for PR 13078 at commit 2d9a090.

[shaneknapp]

i will retrigger this build once maintenance is over.

[srowen]

Y'know, while we're at it, the matrix args in this whole class don't match the docs. The arg here and similarly elsewhere can be called "A" not "a".

Also this should check that A.rows == y.length for consistency.

[zhengruifeng]

Right. I will rename the matrix args to upper and add this missing checking.

[shaneknapp]

jenkins, test this please

[shaneknapp]

jenkins, test this please

[SparkQA]

Test build #58497 has finished for PR 13078 at commit 2d9a090.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[SparkQA]

Test build #58537 has finished for PR 13078 at commit 9b2a5aa.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[rxin]

@srowen we should backport the doc fixes into branch-2.0.