msm: qpnp-revid: add support for new PMIC subtypes

Currently, there are PMICs with subtype register values ranging from
1 through 19. Update the pmic_names string array to get it in sync
with current PMIC hardware availability.

Change-Id: I26b8b710abde522b5b9c13df7f4fa6aae37348cd
Signed-off-by: Osvaldo Banuelos <osvaldob@codeaurora.org>