Prince Harry has reportedly arrived in London to be with his father King Charles. The 75-year-old monarch was diagnosed with an undisclosed form of the disease after a “separate issue of concern” was detected when he underwent a procedure for an enlarged prostate last month and now his son Harry – who relinquished royal duties in 2020 in favour of a life in California with his wife Meghan, Duchess of Sussex – is said to have landed in his home country. According to DailyMail.com, the Duke of Sussex – who has Prince Archie, four, and two-year-old Princess Lilibet with Meghan, Duchess of Sussex-…