[Bug]: Fix typos in HistogramData.java and HistogramDataTest.java

What happened?

The recent commit of HistogramData (9aaf9c213e) has introduced a few typos to the code.

(1) wiht -> with

beam/sdks/java/core/src/main/java/org/apache/beam/sdk/util/HistogramData.java

Line 82 in 7632d48

* Returns a histogram object wiht exponential boundaries. The input parameter {@code scale}

(2) effecient -> efficient

beam/sdks/java/core/src/main/java/org/apache/beam/sdk/util/HistogramData.java

Line 384 in 7632d48

// This method is valid for all 'scale' values but we fallback to more effecient methods for

(3) Postive -> Positive

beam/sdks/java/core/src/test/java/org/apache/beam/sdk/util/HistogramDataTest.java

Line 208 in 7632d48

public void testExponentialBuckets_PostiveScaleRecord() {

Issue Priority

Priority: 3 (minor)

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[viveksumanth]

.take-issue