When the macro was introduced, a semicolon was added at the end
of the definition and merged like that in v5.2 release. The semicolon
was then removed in master but the change was never backported in v5.2.
This commit removes the semicolon to the definition of the PATCKED_ATTR
macro in v5.2.
Closes https://github.com/espressif/esp-idf/issues/13149
Add Kconfig option SPIRAM_ALLOW_NOINIT_EXTERNAL_MEMORY
When enabled, a new linker script rule (from esp32.extram.noinit.ld)
places any variables in the .ext_ram.noinit section in SPIRAM.
This section is exempted from the startup SPIRAM memory test and is
not zero-initialized or added to the malloc pool, making it usable
for noinit variables that persist across reset.
The EXT_RAM_NOINIT_ATTR macro places variables in this section.
