target/armv7m: Rename xPSR to xpsr
The org.gnu.gdb.arm.m-system GDB feature defines the name in lowercase
letters.[1] Not adhering to the definition can cause issues with tools
interacting with the GDB which expect the correct casing.
[1]: https://sourceware.org/gdb/onlinedocs/gdb/ARM-Features.html
Change-Id: I0b6584a78f86b053947d79686baad5dac3ec4a00
Signed-off-by: Boris-Chengbiao Zhou <bobo1239@web.de>
Reviewed-on: https://review.openocd.org/c/openocd/+/7292
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>